What is Jack-up?
1.
To jack-up is a gymrat term for working to improve a specific muscel or set of muscels, especially women who want to firm-up their butts.
She is doin something to jack-up that ass. I'll bet she spends an hour-a-day on the stairclimber."
See
Random Words:
1.
When someone says something stupid, and gets stupid slapped, but their friend wanted to slap them.
Kid 1. Dude think about it 40*20 is ..