What you say when one (or more) of your friends is talking to you, and you are daydreaming about something completely unrelated. Usually said after saying something else, completely random.
Jim: blahblahblahblahblahblahbasketbalblahblahblahblah.....
Bob:sobytheewaywhatdoyouthinkofthisandyouandmeandher..

You: I like Tacos. Wait, what?
by youknowyouwant2 December 3, 2009
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1. Term used after saying something rather perverted or offensive. Said to make it look like whoever said it, was actually joking but a majority of the time they are not.

2. Used to deflect personal responsibility from a blunt comment.
1. Me- "Hey, how's your day going? Oh yeah, I want to do you in the ass! Wait, what?!"

Girl- "Uh, excuse me?"

Me- "I don't know what you're talking about..."

2. Me- "Why don't you quit being such an asshole? Wait, what?"

You- "What the hell did I do?"

Me- "Um, I was just joking?"
by jeffistic manwhore October 3, 2009
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And exclamation when someone suddenly realizes something isn't right.
Person1- Dude, I like, cha...
Person2- Cool.
Person2- Wait, what?
by Jason44 June 8, 2005
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Said often after coming to the realization that what someone has just said is either offensive to you, or someone you care about.
Dude 1: Saw you mom last night.

Dude 2: Oh, really? Where at?

Dude 1: On cops, they busted her for prostitution.

Dude 2: Oh, that's nice. Wait, what?
by Rixon DelBucco August 2, 2009
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Term used on the Internet to indicate confusion about, and often to point out a contradiction within, something someone else has said.
Person A: I like unicorns. Their scales are lovely.

Person B: Unicorn scales? Wait, what?
by IceMetalPunk August 18, 2011
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A way of indicating that the thing you or someone else just said makes no sense.
A new law prohibits smoking in restaurants, bars and on the grounds of hospitals and schools. But prisons, psychiatric institutions and retirement homes exempted...

Wait. What?
by tvjames December 22, 2010
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A phrase used to back the conversation up when you realize you weren't listening. You caught the ice cream end of the conversation,and oops, you wish you had heard the meat and potatoes. It could be important, so you use this phrase to try and sneak by the fact that you were thinking about dirty pics and bacon cheeseburgers while your friend was pouring their heart out. Hopefully they're so distraught they'll rewind and repeat without noticing.
"........And he left me there all drunk with no shoes and my weave falling out!"
"Wait. What?"
by sugarmonkey April 2, 2008
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