General uproarious fooling around meant to engender cascades of hilarty in the viewers as well as in those engaged in such riotous behavior.
"I know you guys are havin' fun," bellowed Old Man Hornaday, "but I'd be pleased if you'd take the shenanigans somewheres else if you don't mind."
by Crabby Old Goat September 13, 2009
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Shenanigans is the universal law of the universe, the law consist of just uttering the word shenanigans and any argument you are in you automatically win no question's asked.
The rule of shenanigans can be summed up as "I Win, You Lose, Fuck You!"
If you are getting robbed and the robber has a gun to your head, and you call shenanigans. The robber is obligated to put the gun down and walk away.

"Why the hell is there a bomb in your luggage?"
"SHENANIGANS!"
"Oh Snap! Hurry up then, the planes about to leave..."
by UniversalLaw May 11, 2010
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To manipulate or transform through shenanigans and/or tomfoolery
Gent 1: Dude, why is the refrigerator inside the couch?

Gent 2: You ate my left overs, so I decided to shenaniganize the hell out of your fridge. We're even now.
by Doc Balance June 12, 2012
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The act of participating in the creation of shenanigans.
That was one busted ass nigger, messin up da scene with his shenaniganism!
by Justin Bailey October 06, 2003
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When someone states a fact you call shenanigans and they have 48 hours to prove it and if they don't you kick them in their genitals
John: I'm going to fly to the moon

Gary 'von douchebag: Shenanigans
48 hours later

Gary 'von douchebag: did you go to the moon

John:NO

Gary upercuts John with his foot strait to his genitals
by Gary hater 89 October 31, 2009
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to engage in various shenanigans
Me and my friends were shitfaced drunk and did some shenaniganing last night.
by joe momma <3 February 02, 2009
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