When the female of the species copulates so much that the outer lips of the pleasure palace are defiled and become very puffy, hence whorebag
Look at that whorebag, it looks like you could use it as a baseball glove
then your best friend
then your cousin
then your best friend's cousin
and your bro
then the guy next door
then his neighbor
then a random dude form the bar
then the next day her Facebook status says "I love my hubby"
2. A female that could potentially fuck a entire family tree and possibly the entire town they reside in, while supposedly being in a committed relationship.
Friend: What!?!?! Are you sure because I fucking layed pipe like the mario brothers on that.
Me: Hey, I just hope it was before you got your turn. You know she is a total whore bag.