1. n. a foolish person. Who’s the yock wearing the red bandana?
2. n. idle chatter. I’ve heard enough yack to last me a lifetime.
3. Go to yak.
1. in. to talk. Stop yakking for a minute.
2. n. a chat. We had a nice little yack and then left for work.
3. n. a joke. Don’t tell that yack again. It’s not a winner.
4. n. a laugh from a joke. The audience produced a feeble yak that was mostly from embarrassment.
5. in. to vomit. (Onomatopoetic.) Hank was in the john yakking all night.
6. n. cognac. (Streets.) My man, have some yak.