the act of placing ones unwiped asshole on an unsuspecting persons forehead, the placee then grips the ears of the stampee forcing the forehead in a violently upwards motion resulting in a distinct seal of approval shitstain on the forehead; this move is typically performed whilst giving her the arabian goggles; the nature of ones feces must be such that the hue is mustard yellow in color and should be performed after ingesting large amounts of cole slaw, dill relish, saurkraut and copious amounts of Old Milwaukee.
Your mom most definitely did not appreciate the mustard stamp that I gave her last week....yet, I find humor in the fact that she has yet to clean it off???
by cornfritter October 25, 2010

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