making a mistake on purpose; intentionally fucking something up.
'There's ink all over your shirt!'

'Yeah, I up-fucked it because I really hate it.'
by P-Dew May 23, 2009

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Top Definition
To fuck something up so much that The very thought of looking at it turns you dyslexic.
Hey, lets go upfuck Tony's brand new bike with these wrenches and crowbars.
by chillin2long June 04, 2003

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when you are caused to throw up sperm.
i shoved my dick so far down her throat that she upfucked all over me.
by fleneneh September 07, 2010

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After a blow job the act of a girl throwing up the cum.
Dan: Gosh man Jill sucked my dick so good last night but then had an up fuck of my cum
Jimmy: Damn
by TaylorGangOrDie November 28, 2012

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1)(adjective) To show coolness of something.
2)(noun)An idiot.
3)(adjective) To mess things up real bad or to "fuck up."
1) Those new shoes are upfuck.
2) Dude your such an upfuck
3) I upfucked that test so bad.
by JCrac December 07, 2006

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A sexual position in which a standing male fucks a woman who is being hoisted, with no external supports (eg, walls), up to waist level.
"Hey Johnny, what's up?" asked Jane.
"My penis. Let's go upfuck, right here, right now."
by AJ Kim December 03, 2003

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