Used as an interjection, "Shenanigans!" denotes a person or event suspect of unscrupulous or dishonest conduct. If one believes they bear witness to such an occurrence, they should immediately call "shenanigans!" to draw attention to it.
There's no way he could have done that by himself...I call shenanigans!
by TheLastMuse July 17, 2008
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one who performs shenanigans
Alex Durrant is a shenaniganizer todos los dias.
by CaseyRocksYourFaceOff September 9, 2006
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"Would you like to call shenanigans?"
"Yes Alex, I'll take shenanigans for 400."
by hswbdiuw January 26, 2008
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One who partakes in the planning, and pulling off of shenanigans

Someone who engages in frequent shenanigans, a portmanteau of "shenanigan" and "engineer"
John supplied the idea of filling the water balloon with yet another water balloon. He also supplied the balloons and the water, he was the head shenaniganeer of the entire thing, you could say.
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(n.) 1. One who engages in acts of Sheneniganism. 2. An undisputed master of mischief.
"Chad was quite the Shenaniganator at last night's party."
by The_Boneshackler January 27, 2012
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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 14, 2009
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noun:

1. activities of a playful nature, often with a titillating, sensual, or sexual aspect.

2. rowdy, raucous, or rough activities that have a playful or intimate intention
I have a date tonight that I hope will end up in shenanigans.

I'm definitely up for shenanigans.
by ssky November 28, 2017
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