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Acronym; "Ate the F*** Up"; Can be used to describe a person, place, thing, type of operation/mission or a form of business i.e. unit, corporation etc.

When something/someone is not operating to the ability in which it should. ATFU happens before FUBAR and after SNAFU.
PVT Smith's uniform is ATFU.
ATFU by JSP123 January 22, 2009
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Acronym; "Ate the Fuck Up"; Can be used to describe a person, place, thing, type of operation/mission or a form of business i.e. unit, corporation etc.

When something/someone is not operating to the ability in which it should. ATFU happens before FUBAR and after SNAFU.
PVT Smith's uniform is ATFU.
ATFU by JSP123 January 22, 2009
Related Words
atfu ATFUD
Anonymous hacker group by the name of All Trolls For U.
They leak Pedos IP adress and all raid/troll chats on the Amino app.
Bro have you seen what ATFU did yesterday?
no
Dude they leaked 5 pedos ip's...
ATFU by atfu_xoiv November 16, 2018
a random typo for "stfu".
"Princess Leia says ATFU!"
atfu by linds March 24, 2005
abbreviation for "ate the fuck up"..when someone stays up and is retarded, or stuck the next day
he been up all night on that crystal, now that fool atfu!
atfu by summer d. October 3, 2008
Short form for Asian The Fuck Up.
<Shears> someone tell someone to ATFU after they say something stupid
<Shears> so i can quote it for Urban Dictionary
<TLR> ATFU, Shears.
atfu by George December 26, 2003
ATFP - Ass the fuck up.
Founded by Nick, of the misspelling of the word STFU.
Dude atfp, moron.. u fucking cock sucking mulione.
atfu by Tal-ev Osimao November 7, 2004