Empty Punching Bag
An extremely loose vagina.
Brad: hey Riki, did you bone that chick Carol from the bar last night?
Riki: I sure did bro, unfortunately for me though I couldn't feel a thing, she had a fanny like an empty punching bag.
Riki: I sure did bro, unfortunately for me though I couldn't feel a thing, she had a fanny like an empty punching bag.