Top definition
Having so much extra "granny" panty fabric under your pants, it looks like a bat flew into your ass right before you pulled your pants up over it.
Check out the Bats on the Booty under that girls pants.

She'd be hot if she didn't have Bats on the Booty.
by John Wesley February 09, 2008
Get the mug
Get a Bats on the Booty mug for your father Callisto.