"Off The Book" In reference to playing a hand of blackjack against the rules of Basic Strategy. Also see BTB "By The Book"
You have a 16 against the dealer showing 10. You stay. You're playing this hand OTB.

"I'm going OTB on this one."
by asdfjkl;a November 10, 2011
Get the OTB neck gaiter and mug.
Of The Boat pertaining to a Russian immigrant who speaks little english.
He is such an OTB he drives a Maxima and hangs out at El Greco
by Sexy Beast February 26, 2003
Get the OTB neck gaiter and mug.
out of town bitch. Uk those hoes that show up to the party that no one rly likes but will give head in the back corner.

#GNOTBS
Woah matt look, that hot OTB Fiona is giving Jake head in the back rn!!!
by GN hoe October 05, 2019
Get a OTB mug for your Uncle James.
One Tough Bitch OTB Sisterhood SheKnewSheCould

OTB=One Tough Bitch. The term is used to define a woman who is going through or has gone through lifes challenges, recognizing she has the power to push through and keep moving.
She fought cancer like a hero, she was OTB.
by Shellfish18 February 03, 2019
Get the OTB neck gaiter and mug.
Term that stands for "over the bridge." Used by Philadelphians to describe suburbanites and suburban attitudes, especially those associated with New Jersey. Similar to the usage of "bridge and tunnel" in New York, OTB originated because suburbanites from NJ have to cross one of several bridges over the Delaware River to get into the city. One does not necessarily have be from NJ to exhibit OTB characteristics. Many OTB people reside in Delco or Bucks County. Examples of OTB characteristics include loud and aggressive behavior, fist pumping, and enjoying chain restaurants.

Much to the chagrin of real Philadelphians, OTB people descend on the city every weekend, but they especially love the bars and clubs in Old City (possibly because they don't have to stray far from the bridge to reach them). When out of town the OTB people will say they're from Philly, but they've only actually ever hung out in Center City and maybe South Philly (but probably only near the stadiums) because they're afraid of the rest of the city.
"Dude, Eagles fans suck. They even booed Santa!"
"Come on man, don't judge our city based on those people. They're mostly OTB anyway."
by WestPhilly4 January 14, 2014
Get a OTB mug for your buddy Beatrix.
v.,n.,adj. (oh-tee-bee): referring to a sensually seductive females, acronym for 'Okay To Bang.' Usually used in everyday conversations among group of males who check out other females' buttocks or breasts; these females may cause hardenings or urgings to 'bang,' or to fuck.
'Ey yo shes got some ass there'
'yeah she's pretty OTB'
by kberry April 09, 2009
Get the OTB neck gaiter and mug.