A creature that lives inside very large, loose vaginas. Generally these bats like cave-like vaginas that have large stalagmites and standing water.
Dude Paris Hilton is so loose, she must have some vag bats up there.
by johnny appleseedy November 05, 2008
1 more definition
When the folds of the labia are oversized and when pulled apart resemble bat wings
That chick has a vag bat!
by Craigman77 June 02, 2010