describing someone who pulls pranks or a mischevious idea
April fools day is a very shenaniganous day.
by fdnb April 02, 2009
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The name of a game played 24/7/365 by people who know of its existence. The game is played by first saying "Shenanigans", then, the person who said it is allowed to hit or otherwise hurt anyone within earshot of them at the time that they said it. The main target tends to be the groin on males and the chest on females. People who are within earshot when "Shenanigans" is said must say the word "Mulligan" as soon as they hear it to prevent being a target. If someone is hit either before or while you are saying the word "Shenanigans" or after they have said "Mulligan", you are considered to have cheated and they get a free hit on you. Note that saying "Shenanigans" lasts indefinately until each person within earshot has said "Mulligan"
Bob: "SHENANIGANS!" *smacks Tom in the groin*

or

Bob: "SHENANIGANS!"
Tom: "MULLIGAN!"
*Bob hits Tom in the groin*
Tom: oooh, that's a free hit! *smacks Bob in the groin without penalty.*
by Eric February 08, 2005
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-You can't lump us in with that martian.
-Yeah, Our shenanigans are funa and cheeky.
-His are Cruel and Tragic.
-Making them not Shenanigans at all.
-Evil Shenanigans.
-I'm gonna pistol whip the next guy who says Shenanigans.
-Hey Farva what's the name of that place with all the goofy shit on the walls and the mozerella sticks?
-You mean 'Shenanigans'?
by GimpTG September 23, 2003
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Usually the result of a bizarre night or encounter that ends in some timeless story.
The other night I bartended at this frat only to wake up the next morning in the attic with three topless girls and no memories... I wonder how I get myself into this type of shenanigans?

A: Dude I know this guy who can get us in to this party at this club in Miami for New Years break.
K: No way! I can only imagine what kind of shenanigans we can get in to.

or the classic...
I have to tell you about my shenanigans the past few weeks
by shen man December 06, 2009
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the field and study of planning and building and executing shenanigans
I'm getting a ph.d. in shenaniganeering.
by teslaberry September 17, 2014
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An interjection used to falsify another's statement... Pretty much the trump card of conversation.
"I call shenanigans!"

a: "Hey"
b: "Wassup"
a: "I heard my girlfriend cheated on me with you"
b: "SHENANIGANS"
*runs*
by N-Diggle September 22, 2006
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