Top definition
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.
by JSP123 October 11, 2008
Get the ATFU neck gaiter and mug.
Apr 24 Word of the Day
A cultural and aesthetic mind-state that prioritizes making money, even as an “underground” or “radical” creator. The work isn’t made for money, but it’s the money that matters the most.
“Dude, his stuff is pretty out there but he’s still pretty Finance Punk.”
by Pop Pop Bienstock April 01, 2021
Get a Finance Punk mug for your brother-in-law Georges.
2
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.
by JSP123 October 12, 2008
Get the ATFU neck gaiter and mug.
3
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...
by atfu_xoiv November 16, 2018
Get a ATFU mug for your father Jerry.
5
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!
by summer d. August 08, 2008
Get a atfu mug for your bunkmate José.
6
<Shears> someone tell someone to ATFU after they say something stupid
<Shears> so i can quote it for Urban Dictionary
<TLR> ATFU, Shears.
by George December 26, 2003
Get a atfu mug for your Aunt Larisa.