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1. BTFU
Boiler the fuck up

-As in, Purdue Boilermakers
Holy shit, we just beat Notre Dame 47-16, BTFU mother fuckers!
by Kyle K. Oct 14, 2004 add a video
2. btfu
Boiler The Fuck Up

suck it up and get it done damnit!
Its 11 in the morning at Jakes Bar (or bar of choice)

guy 1: cant finish the rest of my beer
guy 2: btfu, we gotta leave for the football game in a minute
3. BTFU
A Delaware native acronym for Bagging The Fuck Up.

Similar to Cracking the fuck up.

It's used to express laughter in an uncontrollable manner.
Some lesbian was talking shit at the bar so I threw a drink on her. The bouncer asked me why I threw the drink on her and I said " because she looked thirsty" I was BTFU
4. btfu
An acronym or abbreviation used for "Back The Fuck Up" meaning 'I Told You So!', 'Back The Fuck Up!' (in an angry sense), or 'In Your Face!'
person 1: Dammnn, shawty does have a nice ass!

person 2: exactly.. now btfu
5. BTFU
Buck The Fuck Up
Wow, Patrick is such a bitch, he really needs to BTFU.
buck the fuck up patrick
by m1ch Nov 12, 2011 add a video
6. BTFU
Back The Fuck Up
Hey, Let me get a slice of your pizza...

Yo, BTFU, wash your dirty hands first.
7. BTFU
BTFU, acronym, Brew The Fuck Up.
Get home from work, crash face down on sofa, raise one hand and shout in cushion muffled voice "BTFU" to other half/kid/lodger, who rushes to kitchen to make emergency cup of coffee to revive you in time for the evening.
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