ballsout

a unit of measure regarding to the top end speed of something.

when asked by the officer how fast he was going bill replied "im not sure but it was pretty ballsout.

by tellitizaman September 7, 2010

ballsout

When your testicles are out of your pants through the zipper of your jeans.

"dude, your ballsout."

by TheLiriValley April 13, 2010