noun; it's when you do something stupid, it's normally violent and it and is not necessarily funny, dumb nicknames often ensue.
Tom Foolery is like punching a metal trash can while walking down the street. It should make an excessively loud noise.

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Top Definition
Wreaking Havoc/causing general chaos/shennanigans, taking the piss, etc...
Boy that old Elvis he does nothing but Tom Foolery anymore, I tell you what...
by Arngrim September 23, 2007

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Doing acts of random stupidity. Not using your brain when you perform a prank.
"I do not have time to deal with you kids knocking over these port-a-pottys, i just cant deal with all this tomfoolery tonight".
by Jon1235 September 05, 2005

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To play a prank. To trick someone into something else. To fool someone.
James invited me to the party Friday, but when I got to the place he told me, no one was there. On Monday, people at school were talking about how awesome it was Friday night. I think there's been some tomfoolery going on here.
by Juice Dudette February 23, 2008

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mischiefous tricks, very similar to "shenanigans"
god i hate this sly little kid, hes always getting up to tomfooleries, little bastard
by cooklington December 02, 2004

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1) Acting as if you are incompitent in the presence of others; 2) an act or example of lewdness or misconduct frowned upon in society
Jake: hey lets go ride the kiddie rides guys! my treat?

Jakes Friends: No thanks, we are not interested in your tomfoolery.
by Dr.Doctor@info October 15, 2012

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An act of stupid and mischievous behaviour, commonly in the form of a prank, and can sometimes be illegal.
1) Ed: Want to pee in the beer bong and get some gronk to drink it?

Anna: Yeah man! That's some high quality toomfoolery in the making!

2) Ange Autopsy: You guys made me look like a total idiot last night. *cries hysterically*

DM: Awww DUDE it was all in the name of tomfoolery!
by apaz July 21, 2009

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foolishness of the type tom would engage in
"Enough of this greeked tomfoolery. It's called lavaliered."
by Elric21 March 14, 2012

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