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1.
The act, and sometimes attack move) of jumping on someone's back until the person is forced to the ground.
So I was in photography class and I got full koala'd. It was pretty bad.
by alphamaledomination April 25, 2006
 
2.
N-The act of performing both anilingus and cunnilingus in one motion, generally with the recipient's legs elevated.
Giving full koalas is a leading cause of bad breath amongst adult film actors.
by full koala December 14, 2010