Top Definition
Text shorthand for "how dare you".
Person 1: "Yo mamma is fat."
Person 2: "HDU make a lame 'yo mamma' joke"
#hdu #how dare you #acronym #chat lingo #shorthand
by Channel42 October 23, 2007
"short hand" for "How dare you?!"

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?!"

#rude #rudeness #how dare you #rood #ohnoyoudidnt
by cecilia-weasley October 30, 2007
Text shorthand for "how do you"
"This homework is so hard like HDU even."
"HDU get up at 6AM on a Saturday, that's gross."
#how do you #how do u #i can't #hdue #how do you even
by pinkandyellowgirl March 04, 2013
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