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2.
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.
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