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 laugh loudly. (see also yak.) Everybody yocked at the joke and when things calmed down, I announced the mass firings.
2. n. a loud laugh. Sue let out an enormous yock and quickly covered her mouth.
3. Go to yack.