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A Quimby is one fucked up kid. A Quimby wishes the his girl friends were men. A Quimby is known for being caught jacking off in bathroom stalls. A Quimby is truly someone you need to make fun of.
dude stop being such a fucking Quimby!!!
by Texan March 04, 2005
The badass mayor of the Simpsons's hometown.
Mayor Quimby: First, one announcement: I regret to inform you we are not offering childcare tonight. I don't know who that guy was you were leaving your kids with.
by mr. re-run October 05, 2011
Commonly misunderstood to be the central player in an all male three-way, a "quimby" is actually the male in two woman three-way. Selected by choice bi-curious trim for his long, never-flaccid penis, "quimbies" have been spotted whiffing the occasional bike seat and, upon request, tossing a nicely-groomed woman's salad.

Other common misuses of the word involve chickens and farts.
My best girlfriend and I picked up this amazing quimby last night who took us to entirely new levels of sexual bliss.
by SoCal_Boi August 27, 2010
A goon, a nameless, faceless, part of a gang. A hanger-on, a sidekick of a more outspoken, charismatic bully.
Take the classic movie, "Surf Ninjas:"
"Dude, who were those quimbies in the camo pajamas?"
by Rockin' Dave February 22, 2005
a righteous soul, one who knows whats good; Someone with many ideas.
What are we going to do today quimby?
by James Cash Barrett March 17, 2008
a totally gay guy that has ridiculous hair but thinks he's straight
OMG that Steedman is such a quimby
by fallows May 26, 2012
A Quimby is someone who is a total twat. No matter how much of a gimp / loser the Quimby in question is, they will always think they are a cut above. A Quimby is someone who holds their coffee mug with both hands in a cradle like fashion in a way you would on freezing cold day in order to warm your hands. However, the Quimby holds his / her mug like this all the fucking time even in the midst of summer when every other cunt is sweating their tits off.

A Quimby will not engage in full group conversation and will adopt a too cool for school attitude in such a situation, especially if the rest of the participants are having a laugh and joke.
A Quimby is a miserable twat who likes to hang around by themselves as they perceive themselves to be better than everyone else.
A Quimby jogs to work but refuses to have a shower so everyone else has to put up with his / her stinking attitude as well as stinking armpits.
A Quimby is someone who is quiet around normal folk, but as soon as his / her boss is on the scene goes on a full on charm offensive which usually results in the Quimby and the boss been alone together in the end and a full on rimming session will them commence.
A Quimby is someone you wanna bitch slap everytime they speak.
Fred:'I caught Quimby earlier with his tongue lapping round the gaffers brown eye.'
Jim: ' the pricks always doing it man.'
by A Northern Soul September 13, 2013
To make a fool of oneself unintentionally. Reference to "Mayor Quimby" from The Simpsons, who was subjected to frequent misfortune as the result of his unluckiness. A Quimby can refer to an event in which someone humiliates themself or a period of time in which their behaviour was littered with frequent misfortune. The word "Qumiby" can be used as a verb or an adjective.
Frequent occasions for which the term can be used include: Failing a test, getting obscenely drunk, falling over/tripping up etc.

NB: Credit to Alex Waylett for raising awareness of the word
Describing someone having had a "Quimby"- "You've had a Quimby mate." (Verb)
Describing a currently occuring event- "You're having a Quimby of a time" (Adjective)
Abusing someone and teasing them- "Ahhhh Qumiby!" (Noun)
by HemelPaigons July 27, 2012