Mr. O'Connor

Literally the most annoying person to walk the halls of Loch Raven Technical Academy. He's secretly a tomato and has a talent for randomly stepping into a conversation with your friends and making it akward.

Kayla: Yesterday I got dress coded.

Sharkisha: Oh, it must've been Mr. O'Connor who did it right?

by Basicbitchsarah September 13, 2018

Mr. O'Malley

Mr. O'Malleycatis an Alleycat.

That stoner is a Mr. O'Malley.

by The Waldorks July 19, 2016

Mr. O

A master yapper/story teller trained in the arts of yappology

Thomas won’t stop talking, he’s pulling a Mr. O

by Dr. Gabe March 6, 2024

Mr. O'Brien Science Brainrot

The Mr. O'Brien Science Brainrot is a subculture, religion, manuscript, and "disease", based on the life of Russell O'Brien. Due to his high-pitched voice, a voice recorded file of a Mr. Hanky soundin ahh fella went viral within New Zealand, bringing the group into popularity.

"William and Arman's conversion to the Mr. O'Brien Science Brainrot group changed my perspective."
"The legend of O'Brien's breakout of an ISIS facility through rat atom manipulation inspired me to convert to the Mr. O'Brien Science Brainrot"

by Bigwillyoftingletribe April 24, 2025

Mr Odgers

A god among men. If you anger Mr Odgers he will smite you. Respect his drip.

"Did you see Mr Odgers? He killed Mateen."

by Xander Boi March 16, 2020

Mr.Otto

Mr.Otto's constant bitching and nagging is the key to making people go insane. Mr.Otto gains sustenance from feeding off the fear and anguish of the children he bullies. He will yell and be pissed at you for no apparent reason. If you ever see a Mr.Otto, immediately run the other direction or he will steal your soul. He also has the ability to call his friend Satan to help whoop ass if needed.

Dave: Dude, I think I saw Mr.Otto
Steve: I know bro, I'm fearing for my life right now.
Dave:Oh my God, he's sucking out that kids soul. RUN!!!

by EeeWee January 10, 2019

MR OD

An inspiring entrepreneur, who, with his groundbreaking GCSE business results, Has conquered the world of business. His latest business venture has sky rocketed into to success.

I need to contact MR OD the man himself. He’s my idol.

by Businessenquiries.m8 April 16, 2020