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I. Behaving like an infant.

II. Immature,Childish.

III. Still living in your mother's house.
That Keith guy, he needs to quit living off the boob,and grow up.
by Corpse-Darkfall February 22, 2009
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Apr 28 Word of the Day
Literally everyone, ever. Including the writer of this definition.
by masokitsune January 17, 2019
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