Top Definition
Those damn lower back tattoos that girls/women get. Sometimes also known as "ass antlers." Ubiquitous in porn.
The last three girls I dated all had the same slut stamp.
by Fletcher Christian September 08, 2005
1 more definition
a tatoo near the right or left hip bone, be low the naval.
Her shirt was so short you could see her slut stamp.
by I guess I'd be the Kait October 15, 2007

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