Tramp Stamp of Approval

Word used to describe girls that are particularly slutty, whorish or down right hookers

Andrew: Did you see that chick?

Josh: Yeah, she definitely has the tramp stamp of approval

OR

Joe: So you and your girl broke up huh?

Tim: Yeah, she had that tramp stamp of approval. I had to cut her loose.....pun intended.

Tramp Stamp of Approval by itzzzzzTPayne June 14, 2010

Tramp Stamp by Association 

When the lower back area usually designated for the tramp stamp is left clean on purpose, but is surrounded by all sorts of tattoos instead.

Stacey: I will never get a tramp stamp...that part of my back will remain clean!

George: But that spot is surrounded by tattoos! It's a tramp stamp by association!

Tramp Stamp by Association by ShooterMc June 9, 2011

Anti-Tramp Stamp 

A lower back tattoo of the "DO NOT ENTER" street sign.
http://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Do_Not_Enter_sign.svg/600px-Do_Not_Enter_sign.svg.png

She has an anti-tramp stamp, she must not not want it in the ass

Anti-Tramp Stamp by Parth S Patel January 15, 2009

New age tramp stamp 

A girl who has a leopard print tattoo any place on her body.

The New age tramp stamp. Most commonly found on girls. A leopard print tattoo across the shoulder. Starts on rear shoulder and ends usually collar bone. Usually a good sign that they will go home with anyone who pays them attention.

New age tramp stamp by KingJefe January 17, 2013