1. Short for "How are you doing?" It can also be used for the pickup variety of that question, "How you doin'? ;-)"

2. Also short for "How did you do?"
(1)
Guy: How you do? Baby.
Girl: OMG, where did you learn how to speak? That's your pickup line? hahahaha

(2)
You: How you do?
Guy: I used the line that you told me, but she laughed at me. That was so messed up.
by w3source February 12, 2008
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Phrase spoken to a person who walks in on a conversation that would sound wrong if they heard it.
Example 1:
Person 1 - I wouldn't worry about it. The computer says the average size for a 15 year old is 6.579 inches.
Person 2 - Yeah.
Person 1 - The thing is...
*person walks in*
Person 1 - How you doing? Doing good?


Example 2:
Person 1 - But you have to pay a lot of money for those.
Person 2 - I agree totally. I would never use those.
Person 1 - See, sometimes, I take my toy lightsaber and...
*person walks in*
Person 2 - How you doing? Doing good?
by Grif July 5, 2004
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A slang term that implies confusion and befuddlement. Often used when you have not been paying attention and you have to do a worksheet or test. This expression usually pisses people off.
"This worksheet is on standard deviation; how you do dis?"
by Chunky Reddy January 4, 2009
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A greeting often used by "The typical white man" usually in business settings and most of the time rhetorical, often said fast and only understood by other typical white men.
Dave the typical white man: Hey, how you doing?

Random typical white man on the 3rd floor corporation hallway: Hey, how you doing?
by JANmusic October 7, 2013
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Unnecessary plural used for the word "it", otherwise meaning "that is how you do it".
by CelticWonder November 19, 2002
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