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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.
by DrHarley06 October 18, 2011
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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!!!
by Johnno May 16, 2005
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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!
by stant.d.bant May 03, 2010
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That chick was hot. Did you see her ass? She was a total itb!
by Brent Wallace March 08, 2003
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A term that refers to be In The Bed. This is a list of the most attractive men in the entire world! And a short list of women too! There is a list of extra attractive men which is referred to as ITFB (In The Fricken Bed).
Person 1: OMG, Cousin Jackie is the most ITB man in the world.
Person 2: uhhhh, of course he is.
by Cousin Jackie Wannabe July 21, 2013
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