A Shank is when You Masturbate whilst taking a dump. twice the orgasm!
"Just popping for a shank",
"Go shank yourself",
"Shank-face"
by D2323 November 28, 2007
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To both masturbate and defecate simultaneously, usually on a lavatory or into a porcelain container.

Many begin to defecate before masturbating, so as to start an uninterrupted fecal flow. Also, it is not a requirement to ejaculate and finish defecating at the same time, but dedicated "shankers" will attempt the 'Snow on the Mountain' technique (wherein the discharge lands on the fecal matter.)

It is not necessary to be nude, but serial "shankers" will usually derobe before attempting a long shank.
Guy 1: "Jeez, you were ages man. What took you so long? Big shit?"

Guy 2: "Nah man, had a good shank."

EXAMPLE 2

Guy 1: "Well, thats me kicked out"

Guy 2: "What did you do?"

Guy 1: "My girlfriend woke up and found me shanking next to her last night."
by Joshmilburnt January 07, 2010
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1. A homemade knife or stabbing weapon.

2. A short wank, time constrained by location and/or circumstances.
1. Pimp Daddy Smurf shanked Alfonzo for stealing his toilet wine.

2. That blonde walked by me between classes, so I slipped in the john and pulled a shank before second bell.
by Cameron DiAss January 30, 2009
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To stand a woman on her head and eat her like an ice cream cone.
I would love to shank the cougar at the end of the bar!
by Skippy Whitlock June 26, 2010
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verb

To go for a shit and get so bored you end up masturbating
"God i was on the toilet for so long yesterday i ended up having a shank"

"You were in the toilet for a very long time, were you shanking?"
by 3dd0 March 08, 2009
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To shank
1-To mishit (in sport)
2-To crap something up e.g. a relationship
1-Damn! I shanked that last shot!
2-I really shanked what we had going on, didn't I?
by Tomas-N October 25, 2007
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The process of masturbating while simultaneously defecating, usually but not exclusively, upon a toilet. It's etymology lies in a combination of the colloquial terms 'shit' and 'wank'.
Henry Ho locked his door for a quick shank.
by shankwanktank November 12, 2009
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