Otso

Otso is a good looking idiot. He is also a big crack head. Not very loyal kind.

That guy seems to be on another earth that must be Otso

by Sexmaster669 March 12, 2020

Otsego High School

The worst fucking school in Michigan which consists of the biggest thots and fuckboys that get pounded by 6'5" lightskins and get prego for fun. Also has the most basic and shitty mascot in the world 'The Bulldogs'

Plainwell is 10x better than Otsego High School

by joegers October 9, 2021

OTSS

Online Test Scary Series

Kevinmathz is the creator of OTSS, the best mock on aops.

by TheoreticalZebra July 5, 2020

OTSS

On the shallow side

Yeah, he's a great professor, but OTSS, he has a nice ass.

by Margaret Warren July 3, 2010

OTSD

OTSD is the complete opposite of STFU. OTSD being "Open the shit down" while STFU being "Shut the fuck up".

Person 1: "Why aren't you talking? OTSD."
Person 2: "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"

by Oculir February 18, 2021

Kyrpä otsassa

Finnish for very cocky, and arrogant.

Kokoomuksella on kyrpä otsassa.

by mnjt June 25, 2009

otsba

abv. Over The Shoulder Boulder Holder

aka Bra.

A nicer (or secret) way to talk about a bra.

Holly:Dude did you see she was wearing a blue otsba underneath!
Heidi:She's a nice girl.

by Today's Schedule April 2, 2007