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1.
Acronym for Back to the Future, which is the greatest movie of all time.
"OMFG HOW CUM DOC AND MARTY DIDNT USSE TEH GAS FROM DA DELORIANE DAT DOC BURRIEAD TO GET BTTF IN BTTF PART 3?????////// OMFG I AM DA FIRST TO THINK OF DAT!!111"
-Half the members on the BTTF.com forum.
by Phoojoeniam October 02, 2003
 
2.
BACK TO THE FUTURE

reply to 1st definition guy- cus doc drained the time machine of all liquids, if u left the liquids in the car for 70 years it would destory it from the inside
bttf =
Back to the future
Back to the future part 2
Back to the future part 3
by RRman September 23, 2006
 
3.
BTTF: acronym for "Balls to the Face"
"LOL I HEARD LANCE BASS ADMITS HES GAY!"
"Yeah he totally likes BTTF!"
by BITCHPLEEZ July 26, 2006
 
4.
Balls To The Face
Just an acronym.

Usage: Total BTTF.
by aaroninfidel November 27, 2009
 
5.
Boot to the forehead
I'm gonna hand out some bttf's tonight.
by Joe Mamascra November 12, 2005