Kibitz

[Couch Potatoe]

To meddle and give unwanted advice. kuh-Ib-itz

[Agnes]

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.

[Sarah]

to give unwanted or intrusive advice to someone in a game or performance while watching(from German Via Yiddish)

[Sonia]

Kibitz: to sit out of a game and just watch.

Derivatives include kibitzing and kibitzed.

[Lanell]

A top secret organization that is devoted to stealing peoples passwords and talking about music.

[Little_Girl]

Look on and offer unwelcome advice, especially at a card game.