ITB 

Acronym for "in the butt." "In the butt" became extremely popular after South Park and Samwell brought "What? What? in the butt" to giant popularity.

I said what!? what!? ITB.

Duuuuude! Did you PIIHB!? Oh yeah. ITB.

ITB by DrHarley06 October 18, 2011

ITB 

Stands for Invidual Throttle Bodies. Can be found in cars such as tuned AE86's and GTiRs. Every cylinder has it's own throttle body. Greatly improves throttle response compared to a single throttle. Has a great sound to them.

Those ITB'S look f00ly sick!!!!11!!!

ITB by Johnno May 18, 2005

ITB 

Inside the Beltline

I need not say anymore.

Where do you live in Raleigh. Oh, yes, I see.

ITB by Raleigh Boy November 22, 2004

ITB 

An abbreviation for the saying; "Is the best". This shorthand term is used widely on social networking websites and internet forums.

I think Inter Milan will win the Champions League this year, Mourinho ITB!

Nobody watches bbc1, channel 4 ITB!

ITB by stant.d.bant May 3, 2010

ITB 

"In The Butt"

That chick was hot. Did you see her ass? She was a total itb!

ITB by Brent Wallace March 8, 2003

itb 

"inside the beltline." it's a term referring to the people who live in Raleigh, North Carolina. It is where the houses are usually nicer and the property values are higher. It's opposite it otb, "outside the beltline," where the property values are low. people who live inside the beltline are usually of a higher class than the ones outside. Very powerful three letters, because whether or not you live itb or not is what you get judged upon in the Raleigh society.

For more information on the hatred of itb-ers towards otb-ers go to: www.itbinsider.com

Ex:

son: "dad I met a new friend at school today, he's really cool and nice but....

Dad: "but what?"

Son: "he lives outside the beltline"

dad: oh. too bad, if only he lived itb

itb by csfloverz34 December 4, 2009

ITB 

A discreet abbreviation of "in the butt."

I'd totally hit that girl ITB.

ITB by Justin Chen December 25, 2005