What's that 

1. Overhang above fat above vagina
2. A question asked by a gay man who has never seen a vagina

Your what's that is hanging out.

What's that by Ari Smell July 16, 2006

What's That? 

Another way of saying "what?" or "pardon me"

Synonyms: what, pardon me, say that again, I beg your pardon, I'm sorry?

Person 1- (Says something unintelligible)
Person 2 - What's that?"
Person 1 - I said we should head back now.
Person 2- Oh, alright then

What's That? by scratchpiece January 23, 2011

What's that? 

Something you say when you are embarrassed about something or trying to change the subject.

Adam: "So Dwain I heard you blew that guy last night."

Dwain: "What's that?"

What's that? by Brucist August 5, 2007

What's that? 

1. Another way of saying "what did you just say?", or asking the speaker to repeat their previous statement, due to lack of volume or attention or volume.
Synonyms: Huh? What? Whu? What did you say?, say again?, you talkin' to me? etc.

2. The question asked by youtube haters, cyber thugs, and internet toughguys when they first see a girl naked at age 45.

1. Matt: "I heard Dave knocked out Bruce last night and took his dope."
Vinnie: (paying attention to something else) "What's that?"
Matt: "I said, I heard Dave knocked out Bruce last night and took his dope."

2. (Paid-up-front-hooker removes her panties before youtube hater)
45 year old Youtube Hater (pointing to the snooch): What's that?

What's that? by BHK on Vernor April 22, 2009

What's that? 

1. Usually used to get an understanding of what someone is seeing. In most cases, the object in question is a face or an animal.
2. What people say when they just can't quite figure out what the hell their looking at.

Jesse: What's that?
Andy: My face.

What's that? by I Make Folks Cry August 25, 2011

what's that? 

as in, "what did you say?". sounds tough. Travis Bickle says it in Taxi Driver

Bob: Hey, Charlie.... you're a fucking douche bag
Charlie: What's that?

what's that? by Zak Hall February 5, 2005

what's that when it's at home? 

request to simplify the language, avoid fancy titles etc. uses the idea that at home, people don't bother trying to sound impressive. calling a spade a spade.

"i'm an italian cuisine delivery expert"
"what's that when it's at home?"
"pizza boy"

what's that when it's at home? by hepburn May 14, 2008