Top Definition
A woman that has skanky tatoos in unsightly places that make her look like a cheap trick. A tramp stamp is a given but these girls go above and beyond.
I was about to score with Lana but when she took of her clothes I realized she was a tat rat and I went limp.
by February 17, 2010
1 more definition
A slut that creeps around tattoo shops or conventions in hopes of getting laid by a tattooist which in turn provides the possibility of free navel slut-jewelry.
Generally they wear tiny skirts or booty shorts and don't even have tattoos. They say "Oh my God, did that hurt?" a lot. And hover around the counters with their tits out. Sometimes they travel in packs. "Man dude, that tat rat wants to blow me bad.
by something radical February 29, 2012

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