Abbreviated version of "Wake The Fuck Up". Used in chat rooms of any kind when a person is AFK and somebody wants to talk to them. See also STFU
<Homestar>I'm going afk, TTYL
<Strong_bad> Hey i wasnt done talking to you! WTFU!
by FinalPhoenix September 23, 2003
Abbreviation, short hand text for "Wake The F*ck Up".

i.e: Get a clue, pay attention, be alert, be conscious, think.
1. Please WTFU, he doesn't like you!
2. Dear world, please WTFU!
3. I wish this girl would WTFU and stop behaving like an idiot.
by CandyAcidReign September 24, 2011
An acronym that stands for "Well thats fucked up." Used when "WTF" is just not enough.
Guy 1: "Dude I gave my GF head last night while she had a blue waffle!"

Guy 2 *makes face*: WTFU!
by anonymalous August 04, 2011
Abbreviation for Woman The Fuck Up.

To muster intestinal fortitude to carry out an otherwise difficult or challenging task.
I didn't want to go work out, but I had to WTFU and get off my ass.
by peejaymc January 04, 2012
Acronym for "warm the fuck up". Usually said by people who dislike the cold weather and would like to see a warm change.
Bobby: man I wish it WTFU.

Devon: quit bitching bro, it's winter time.
by naydanger89 December 06, 2010
2nd definition to the word

"what the fucks up?"
yo, wtfu?
by shandanbanboobiley August 16, 2009

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