# Urban Dictionary API: Define slang term

> Gets Urban Dictionary definitions for a slang word or phrase in the site's order, with examples, votes, author and date. Returns an empty list when the term has no definitions.

Unofficial. Not affiliated with or endorsed by Urban Dictionary.

- Page: https://fous.com/methods/urbandictionary.com/define-slang
- Method: `urbandictionary.com/define_slang`, version 1
- Website: urbandictionary.com
- Returns: word, meaning, example, thumbs up and down, author, date written, definition link and ID
- Effect: read (it gets data and changes nothing)
- Sign-in: none needed
- Cost: 1 credit per completed run (1¢ with pay as you go); failed runs are free
- Verified: Nov 2, 2026

## Inputs

| Field | Type | Required | In the run below | Description |
|---|---|---|---|---|
| `term` | string | yes | `"no cap"` | Slang word or phrase to define, for example rizz. |
| `max_results` | integer | no | `10` | Maximum definitions to return, for example 5. Default 5. |

## Output

From a run on Oct 23, 2026, shortened. Its input:

```json
{
  "term": "no cap",
  "max_results": 10
}
```

Its output:

```json
{
  "definitions": [
    {
      "word": "No cap",
      "author": "daybird",
      "example": "I would only get perms because people who wear pullouts are fake, no cap.",
      "meaning": "The use of the phrase \"no cap\" is meant to convey authenticity and truth. The phrase originated in reference to decorative gold teeth, which can be divided into two distinct varieties: permanent gold teeth (aka \"perms\") or caps (aka \"pullouts\"). Whereas caps can be pulled out with ease, perms, as th…",
      "thumbs_up": 0,
      "thumbs_down": 0,
      "date_written": "2020-08-27",
      "definition_id": "15274482",
      "definition_link": "https://www.urbandictionary.com/define.php?term=No%20cap#15274482"
    },
    {
      "word": "No cap",
      "author": "Leelee😈",
      "example": "That food was good no cap \nI hit that bit no cap",
      "meaning": "No cap basically mean that their not lying or capping like they did something.\nSometimes ppl write it like this🙅🏽 ♀️🧢or 🚫🧢 different ways",
      "thumbs_up": 0,
      "thumbs_down": 0,
      "date_written": "2018-06-08",
      "definition_id": "12941023",
      "definition_link": "https://www.urbandictionary.com/define.php?term=No%20cap#12941023"
    },
    {
      "word": "no cap",
      "author": "TimeForAVibeCheck",
      "example": "“No cap, this pizza is amazing!”\n“I think I actually like Ty, no cap.”\n“Dude, I’m serious about this— no cap.”",
      "meaning": "A phrase that is akin to “it is true that” or “I think that”, “no cap” is often used to describe an opinionated statement or a statement that is believed to be true. Stemming from the verb capping (basically, “to lie”), it quite literally means “no lie.” Because of this, no cap can be used to descri…",
      "thumbs_up": 0,
      "thumbs_down": 0,
      "date_written": "2019-12-24",
      "definition_id": "14573058",
      "definition_link": "https://www.urbandictionary.com/define.php?term=no%20cap#14573058"
    }
  ]
}
```

## Run it

From code, with a Fous API key in `FOUS_API_KEY`; the answer's `data` holds the output:

```bash
curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"method":"urbandictionary.com/define_slang","input":{"term":"no cap","max_results":10}}'
```

From an AI agent connected to the Fous MCP server: its `run` with the same method and input. To connect one, give it `set up https://fous.com/SKILL.md`.

## Ask your agent

- What does 'rizz' mean on Urban Dictionary? Show me the top 3 definitions with examples and vote counts.
- I keep hearing 'no cap' in group chats, can you pull up the most upvoted definitions with who wrote them and when?
- Get me up to 10 definitions for the slang 'delulu', ordered the way the site lists them.
- Find definitions for 'bussin' including thumbs up and down counts and the link to each entry.
- Look up the slang phrase 'touch grass' and give me the first 5 definitions with their IDs and dates written.

## Input schema

```json
{
  "type": "object",
  "required": [
    "term"
  ],
  "properties": {
    "term": {
      "type": "string",
      "minLength": 1,
      "description": "Slang word or phrase to define, for example rizz."
    },
    "max_results": {
      "type": "integer",
      "default": 5,
      "maximum": 20,
      "minimum": 1,
      "description": "Maximum definitions to return, for example 5."
    }
  }
}
```

## Output schema

```json
{
  "type": "object",
  "required": [
    "definitions"
  ],
  "properties": {
    "definitions": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "word",
          "meaning",
          "example",
          "thumbs_up",
          "thumbs_down",
          "author",
          "date_written",
          "definition_link",
          "definition_id"
        ],
        "properties": {
          "word": {
            "type": "string",
            "description": "Word or phrase as shown."
          },
          "author": {
            "type": [
              "string",
              "null"
            ],
            "description": "Name of the definition author."
          },
          "example": {
            "type": [
              "string",
              "null"
            ],
            "description": "Usage example as plain text, if available."
          },
          "meaning": {
            "type": "string",
            "description": "Definition text without linked-word markup."
          },
          "thumbs_up": {
            "type": "integer",
            "description": "Number of upvotes."
          },
          "thumbs_down": {
            "type": "integer",
            "description": "Number of downvotes."
          },
          "date_written": {
            "type": [
              "string",
              "null"
            ],
            "format": "date",
            "description": "Date the definition was written."
          },
          "definition_id": {
            "type": "string",
            "description": "Urban Dictionary definition ID."
          },
          "definition_link": {
            "type": "string",
            "description": "Link to the definition on its page."
          }
        },
        "additionalProperties": false
      },
      "description": "Definitions in the order shown on Urban Dictionary."
    }
  },
  "additionalProperties": false
}
```

## See more

- [Urban Dictionary API: List words of the day](https://fous.com/methods/urbandictionary.com/list-words-of-the-day.md): Lists Urban Dictionary's Words of the Day, newest first. Each word comes with its featured date, definition, example, votes and definition link.
- [Investopedia API: Define finance term](https://fous.com/methods/investopedia.com/define-term.md): Explains a finance, business, or investing term using its Investopedia dictionary article.
- [Dictionary.com API: Define word](https://fous.com/methods/dictionary.com/define-word.md): Looks up an English word on Dictionary.com and returns its pronunciation, audio link, numbered definitions per dialect with examples, word origin and first recorded use.
- [Merriam-Webster API: Define word](https://fous.com/methods/merriam-webster.com/define-word.md): Looks up a word or phrase in Merriam-Webster's dictionary and returns its pronunciation, definitions, examples and word history.
- [Dictionary.com API: Get synonyms](https://fous.com/methods/dictionary.com/get-synonyms.md): Gets a word's Thesaurus.com meanings in site order, with part of speech, short meaning, synonyms and antonyms ranked strongest, strong or weak.
- [Cambridge University Press API: Define word](https://fous.com/methods/dictionary.cambridge.org/define-word.md): Looks up a word or phrase on Cambridge Dictionary and returns its ordered meanings, example sentences, grammar labels and UK and US pronunciations.
- [Merriam-Webster API: Get synonyms](https://fous.com/methods/merriam-webster.com/get-synonyms.md): Looks up a word on its public Merriam-Webster thesaurus page and returns each meaning with its example, synonyms, antonyms and related words.
- [RhymeZone API: Get related words](https://fous.com/methods/rhymezone.com/get-related-words.md): Finds words with similar meanings, opposite meanings, adjectives describing a word, or strongly associated words, ordered by relevance.
- [All Urban Dictionary methods](https://fous.com/methods/urbandictionary.com.md)