yak

Short definition from Wiktionary

Noun

1. 1
   An ox-like mammal native to the Himalayas, Mongolia, Myanmar, and Tibet with dark, long, and silky hair, a horse-like tail, and a full, bushy mane.
2. 2
   A talk, particular an informal talk; chattering; gossip.
3. 3
   A laugh.
4. 4
   Vomit.
5. 5
   a traditional Korean flute used in court music
6. 6
   A kayak.
7. 7
   cognac.

Verb

1. 1
   To talk, particularly informally but persistently; to chatter or prattle.
2. 2
   To vomit, usually as a result of excessive alcohol consumption.