Top definition
Where one slyly puts one's thumb on someones chair in hope that it penetrates their ring.
Herp: Your thumb smells funny!
Derp: Yeah I did the thumb trick on Derpina just now!
by Lucsterrrr January 24, 2012
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Dirty Sanchez Plush

It does not matter how you do it. It's a Fecal Mustache.

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