OTB 

Meaning "off the bag"- when something said or done to cause a boner.

That girls ass got me OTB!

OTB by Murphy's dad December 5, 2015

OTB 

Abbreviation for Observe The Booty. Generally used when it in public as a code with friends or others who also appreciate a nice thick ass. When used, it can also be paired with a locatiob code to point the other party in the direction of said booty.

Friend 1: Yo! OTB! Check yo left....
Friend 2: Daaaayum! That's hella-thick!

OTB by The Sindividual October 15, 2017

OTB 

On the back

when writing a paper and it doesnt have any room put otb on the the paper so the teacher can know to look on the back

OTB by chk2510 November 8, 2017

Otb 

A rapper that goes by bingsley Otb. Stands for on the blokk

Bitch im bingsley otb i aint never switchin up

Otb by Bingsley otb June 13, 2019

OTB 

On the bus! What muters do in NZ or AUS. This a form of shame that one should keep to themselves.

munter: Look at me in OTB!!
rest of country: what a fricken munter!

OTB by Awesome Uncle October 21, 2019

otb 

(only the bro’s or boys ion know) otb is another east orlando group that was inspired by otmt they claim they aren’t inspired but we all know ... they were 😐

otb can suck my limp dick

otb by mind yo nekk sherm 🤡 January 30, 2020

OTB 

Adjective, used to describe a group of people who are superior to the rest.

Also can be used as an abbreviation of Only Trusted Boys

Girl 1: Damn, look at those guys over there

Girl 2: I know, they’re so OTB

OTB by chescadale January 19, 2021