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when taking a shit, you're on ther so long that, when you get up, the toilet rim leaves a big, oval-shaped red line around your ass.
And often leaving red ovals just above your knees from the weight of your elbows.
dude, last nite i was taking a shit for like a fuckin hour and wen i got up, i had such a massive toilet stamp

the toilet toilet stamped me.

you: i have to go to the bathroom
mom: ok, make sure not to get a toilet stamp
you: mooooom!!

by scootanigga October 27, 2005
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