honk

Short definition from Wiktionary

Verb

1. 1
   To use a car horn.
2. 2
   To make a loud, harsh sound like a car horn.
3. 3
   To make the vocal sound of a goose.
4. 4
   To vomit.
5. 5
   To have a bad smell.
6. 6
   To squeeze playfully, usually a breast or nose.

Noun

1. 1
   The harsh note produced by a typical car horn.
2. 2
   The cry of a goose or similar bird.
3. 3
   A bad smell.
4. 4
   Clipping of honky.

Interjection

1. 1
   Imitation of car horn, used, for example, to clear a path for oneself.