While in the 69 position, the top person shits on the bottom persons face. Then before the bottom person can realize what has just happened, the top person sits back and "stamps" the shit into the bottom persons face.
"Laekin was so mad when I gave her the AJ Stamp, but the joke ended up on me becuase shit ended up getting all over my bed!"
by Bmass October 17, 2006
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