To sit in on a conversation, meeting, card-game or online chat and offer unsolicited, informal comments. The original meaning from Yiddish (kibitzen, derived from German kiebitzen - to be an onlooker or spectator) had a negative connotation of being a busybody or giving intrusive, meddlesome, unwanted advice. However, in contemporary US usage, it has become friendlier.
She's meeting with some suits this afternoon, do you want to come kibitz and liven things up?
I'm not here as a formal participant, I'm just kibitzing.
Quit kibitzing! I know how to play Texas hold 'em.
Noun;
1.) The act of a person or group of peopletalking during inappropriate times and often times about gossip 2.)When a person talks to another while ignoring another person, most likely a teacher giving a lesson
Teacher: Staci, Jackie, Kelly and Kathy go to the office now
Jackie: What for miss?
Teacher: You were all kabitzin about prom while i was teaching. I gave you three warnings. Go now!