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
a phrase used when one is confused with what is happening in a situation, or has not heard what another person is saying
a) person 1: did you hear what happened to insert name here

person 2: something happened? wait what?!

b) person 1: inaudible mumbling and yeah

person 2: wait what?!
by whateven123 November 15, 2016
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
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
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
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
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