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Callahan Theory 

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The Callahan Theory is performed when a person completes all of his/her homework on the absolute last day of the semester. No homework is done through out the course until the last day. Then, he/she hands all of it in to the teacher all at once. To complete the theory, you must still achieve a 3.5 GPA.
Matt - "Hey Pat, have you done your homework tonight?"
Pat - "No, we're only two weeks into the course, I follow the Callahan Theory."
Matt - "What's that?"
Pat - "It's when I do all of my homework on the last day of the semester, and still get an A!"
Callahan Theory by MickWhop July 23, 2012

john o'callaghan 

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(the sex god of all sex gods), John O'Callaghan is an Arizona native and is the lead singer of indie-rock band, The Maine.
A.K.A John Ohhh
Laura: I saw The Maine last night and they were amazing.

Grace: Wait did you see John O'Callaghan?

Laura: Yeah I got a picture too

*Laura pulls out phone and shows picture*

*Both girls fall over*
john o'callaghan by lookingformisery February 12, 2014

calahan 

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A really cool person. Usually blonde. Loved by everyone. Has big feet. Super funny. Makes all people super jelous because he gets all the ladies. Most of the times super cute.
Geez look at calahan go, steeling another girl.
calahan by The true celebrated April 19, 2017

A Callahan 

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When you screw over your soldiers or employees because you can't get over your own bitterness. Applies to all people who revel in ruining the lives of others because of their own whimsical opinions. Common symptoms of "A Callahan" include Napoleon Complex, little dick syndrome, and others.
"Dude, my boss won't let me take vacation for my honeymoon. He's pulling a Callahan on me."
"I literally had COVID but my professor won't let me make up the exam. What a Callahan."
A Callahan by psyfloperator November 18, 2020

Callaghan

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Carrying out desperate but successful last minute actions
Callaghan by Evil G April 9, 2009

calllahannn 

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my famous mutual 😍‼️
calllahannn is a famous mootie patootie of mine 🤤😫‼️
calllahannn by cr0wles June 28, 2021
More from Urban Dictionary

mormon assault vehicle

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another term for a station wagon, mini-van, or any other kind of vehicle that is targeted at the "family" demographic(also M.A.V.)
"Tactical advantages aside, the M.A.V. is top of the line for the holy warrior troop transport manufactured by the Church of Latter Day Saints Military Industrial Complex. Also great for family trips...to heathen lands."
mormon assault vehicle by KVRX January 10, 2005
Word of the Day on August 22, 2026

Shakira Law 

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A version of "Sharia Law" that Reform Ltd supporters tend to refer to, often by mistake.
Richard Tice of Reform now lives in Dubai, under Shakira Law, although telling Brits that we should worry about it
Shakira Law by Reformltd February 16, 2025
Word of the Day on August 21, 2026

Overstand 

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To understand a topic or statement to the highest extent.
Leroy, after being told the tenth time by his sister, did overstand her idea of robbing the 7-11.
Overstand by Elf Eater March 23, 2003
Word of the Day on August 20, 2026

minimap 

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A map that mostly tells you where everything is
Friend 1: Follow me there is a player nearby
Friend 2: How do you know?
Friend 1: Minimap
minimap by LeWord January 13, 2015
Word of the Day on August 19, 2026

Pink Cloud

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12 step recovery jargon referring to someone new who talks about how great life is, now that they're sober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.
Pink Cloud by toniwithaneye November 24, 2006
Word of the Day on August 18, 2026

Dotard 

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An aging individual who has long lost the ability to make rational sense.
That dotard is going to get us all blown up, if he doesn't calm down .
Dotard by anonymous September 22, 2017
Word of the Day on August 17, 2026
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