Top definition
To be all over someone. Mainly girls are 'on peoples sack'.
ie.,(1)Guy 1: Dude! she's all up on your sack.
Guy 2: I know!

ie.,(2)Girl: Damn.. Look at that poor guy. That girls all up on his sack!

Girl 2: I know huh?!
by SukkaPlzYouLoveMe August 10, 2009
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug