When ya really f-ing messed Up!! thingz friends usually chant when they think you are in some serious shit man. when ya got some mental or "physical" issues!!
man you failed that fuckin test you are a real FUCK UP!!!
by hellokittypal May 30, 2007

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someone who hates themselves because they fucked up, and then fucks up more because they hate themselves for fucking up. The semi-fuck-up can be cured, but for a full on case, there is little hope.
John walked to his friend's house, and on the way, he realized he forgot to bring his buddy's xbox controller to give back. John realized he'd fucked up. Then, John got mad at himself for fucking up the xbox situation. He then proceded to be a douche to everyone he saw for the whole rest of the day, just because he forgot the controller. Then, he got pissed at himself for being a douche, and did lots of drugs. John was a fuck-up. He just couldn't stop fucking up.
by Bananabuffalo June 21, 2013

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To destroy your life and have your parents hating you...
Fuckup-Andy Sharp
by Cupcake ninja April 03, 2011

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mistake
i think I'm a fuckup
by reformedpug November 28, 2016

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A shorter version to telling someone to shut up or shut the fuck up.
Guy 1: Bro my parents got me a new car for Christmas!

Guy 2: fuck up Bryan.
by Yungsavage April 27, 2016

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Another way to tell a person to shut up.
Tim: Did you see Angies science project?
Daquan: naah b, fuck up with that shit.
by YooAiz March 24, 2016

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A person who lacks common sense and will do anything for anyone to get attention.
Boy #1 : Yo did you see Sean barf on Jessica?!

Boy#2: yeah he's such a Fuck Up
by Rrvvbb May 10, 2015

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The Urban Dictionary T-Shirt

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-another word then messing up
-cannot be used sexually way as in making out,kissing, having sex, basically nothing sexual
- screwing up or making a mistake
Marie: Darlene! YOU CANNOT FUCK UP!
Darlene: I will not fuck up, because ill make it perfect with no flaws.
by Jaden Flavis July 11, 2011

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Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt