An overly derogatory and condescending way of telling someone that their input in a given conversation is
childish and/or uneducated and will not heighten the level of
intelligence in the discussion.
Also is used when one is
short-tempered and unwilling to deal with more than one person in a heated discussion.
Person 1: What country do you think is the most technologically advanced in the world?
Person 2:
Well Japan has to be in the
top three - if not the number one most advanced in the world.
Person 3: Somalia's gotta be up there too.
Person 2: Okay, the grown-ups are talking. Just stand over there.
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Husband: I can't believe you cheated on me with my best friend!
Wife: Well, I wasn't thinking
straight and he's always there for me.
Husband's best friend: I am around a lot.
Husband: Jesus Christ, the grown-ups are talking! Go the fuck away.