Lumbar Motiff
A tattoo on a woman's lower back. Usually used as a defense against accusations of having a slutty tattoo.
Dude: Nice tramp stamp!
Slut: It's not a tramp stamp! It's a lumbar motiff!
Dude: Whateva slut!
Slut: It's not a tramp stamp! It's a lumbar motiff!
Dude: Whateva slut!