a word used to describe girls when the act cute and cuddly until she becomes comfortable and you learn shes actually an anti-touch person.
Person A- "Bro...she seemed so nice when i met her, we always snuggled and she was so cute, and then we started hanging out and... BAM! BITCH MODE!"

Person B- "Dude... she went KOALA SHIT on yo ass!"
by ayyobro9 April 18, 2011
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Verb - meaning to attack someone from behind or wrap yourself around someone's back or something, like a pole
The stipper totally Koala beared that shit at the dance club. She was all over that pole
by whitegangster123 April 5, 2009
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