Top definition
(verb) To stick one’s penis up someone else’s arse unexpectedly and without prior warning.
She received a rude awakening when he shit weaseled her from behind.
by The Empress 3 November 05, 2010
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2
An animal or person who is sly, sneaky, and opportunistic. Someone who is looking to slip their way into a situation and make it shittier.
"Your friend is such a shitweasel, every time he comes over, he creates drama by asking questions and exploiting their answers to upset people."

"My cat is the ultimate shitweasel. He somehow manages to open the door to my bedroom and urinate in the corner, even though I am very vigilant about keeping it closed and locked."
by JohnnyClemz June 14, 2008
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3
In the corporate world, a shit weasel is a person of similar or higher rank who'll stab you in the back, deny he did it, and blame you for the stabbing. The shit-weasel will deflect blame off of himself/herself in order to maintain his/her reputation at all cost.
That shit-weasel just blamed me for the failure of his own system and convinced the SVP it was my responsibility to begin with. Now I'm in hot water and he's getting his bonus.
by ronmag June 07, 2011
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4
Comes from Stephen King's book, Dreamcatcher. Humans who eat the alien virus call "byrus" grow an alien weasel in their bowles and when it gets too big it bursts out of their butt.
"Mcarthy's lower midsection was covered in blood as the shit-weasel came out"
by Patti March 01, 2005
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5
When there is an intense, overwhelming painful cramping in the stomach and abdomenal region that usually ends results in one bent over clutching themselves in pain. Sometimes there are the noises of a weasle running around and screaming to be released, by means of diarrahea. Side effects may include: goosebumps, shivering, crying, cramping, burning of the anus, sweating, and sharting or aka shit farting.
"Oh man, my stomach hurts sooo bad, I think I have a shit weasel running around and wants to get out oooouch!!" and then run to the bathroom for relief.
by Corinne G. May 08, 2007
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6
An alien parasite that grows in the bowels, causes massive amounts of gas that smells like rotten bananas, and eventually eats its way out through your asshole.
Holy shit, what's that smell?! OH MY GOD, WHAT'S COMING OUT YOUR ASS?!?!
by shiatweasel November 18, 2003
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7
Like a scumweasel, but clever and much more likely to do you harm.
When that shitweasel Delbert comes knocking at your door with a fist full of Amway brochures ranting about "bidness oppertunetties", bar the door, hide your money and go for your gun.
by harry flashman July 03, 2003
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