starting a fight then loosing really bad.
yea,dude started acting all tough and pushing on me,so he got DUN UP.
by Cocobutter123 June 6, 2009
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When you acknowledge that you made a pretty bad boo boo.
I think I dun fucked up in making this tv.
by Fizznut909 December 25, 2016
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A simple phrase that you can say to someone that has made a retarded mistake.
Oh my god Blake, ya dun fucked up, your mom will be so pissed with you.
by NoHomo123 November 7, 2019
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(verb) means you fucked up real bad and you are asking for the ass-whoopin of the century
by FaCe October 30, 2003
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