Although funny and charming, a person who sometimes shows pretense. Rory O'Callaghan's are often known to show alter-agos in the form of Raymond when faced with group situations. Referable to the term Wasteman.
by Griff96 November 25, 2021
Get the Rory O'Callaghan mug.Fucking over your shift trade by putting him on the medic; putting yourself on the pump when you've got a trade coming in for you.
"I didn't want to be tired for my vacation so I asked my trade to go on the medic for me....had to go Full O'Callaghan"; "Fuckin' guy went full O'Callaghan on me and put me on the medic"
by BigBert69 April 10, 2024
Get the Full O'Callaghan mug.Related Words
When you fuck over your shift trades by making them go on the medic; Treating your trades like shit; Ensuring you can never find shift trades again by putting yourself first.
"I didn't want to be tired for my vacation so I put made him do my medic night....had to go Full O'Callaghan on him"
"Fuckin' guy went Full O'Callaghan on me and made me ride the medic for him, I'll make sure the boys don't take shifts for him ever again."
"Fuckin' guy went Full O'Callaghan on me and made me ride the medic for him, I'll make sure the boys don't take shifts for him ever again."
by BigBert69 April 10, 2024
Get the Full O'Callaghan mug.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!"
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!"
by MickWhop July 23, 2012
Get the Callahan Theory mug.Callihanistan is a place at William J. Brennan High school in room E208. Dictator Callihan teaches and all his rules and requests *MUST* be followed.
Jenna: Jeez, that lesson in Callihanistan was really hardcore
Daniel: Oh jeepers! I have that class next
Daniel: Oh jeepers! I have that class next
by Very bad personal January 24, 2020
Get the callihanistan mug.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.
by The true celebrated April 19, 2017
Get the calahan mug.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."
"I literally had COVID but my professor won't let me make up the exam. What a Callahan."
by psyfloperator November 18, 2020
Get the A Callahan mug.