Person 1: "Yo mamma is fat."
Person 2: "HDU make a lame 'yo mamma' joke"
by Channel42 October 23, 2007
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"short hand" for "How dare you?!"

How
Dare
U (short for "you" because we can't be bothered to write three letters anymore)
"HDU insult my mother's choices?!"
"HDU hate Britney Spears?!"

by cecilia-weasley October 31, 2007
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"This homework is so hard like HDU even."
"HDU get up at 6AM on a Saturday, that's gross."
by pinkandyellowgirl March 5, 2013
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Goodmorning baby hdus?
by 12nate16 July 15, 2019
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