"Tramp stamp" is a derogatory term referring to a tattoo which a women places on her lower back. They are sometimes derided as suggestive of promiscuity but don't you worry about that: This one is removable! And unisex!
ahahahaha, I had an idea to make a stamp with a trampoline on it in the same placement as you did! Yours is a much sweeter take on the idea, kudos to you for making tramp stamps cheek-pinchingly cute.
About my design
:P