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An exclamation hilighting the stupidity or lack of logic of a preceeding statement.
"I ate three cockroaches."
"What? Who does that?"
by M December 24, 2004
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2
for one to exhibit extreme self-ownage. to be caught and or owned in a moment of weakness and or utter stupidity.
24 year old gangsta gangsta walks up to the bar and orders a diet and captain. Did you really just order a diet coke and rum? Who does that?

Many situations call for being "who does that" to be apart of the equation. It's up to us to point them out.
by The Guy of That Guy guys January 20, 2009
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3
To highlight one's own magnificence, by exclaiming at the end of a statement of one's own actions.
I just changed the definition of the phrase 'who does that?' on Urban Dictionary...who does that?
by Office Idiot December 03, 2010
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