unf

Universal Noise of Fucking. See above definition for onomatopoeic use as a sound itself.

by Video Warrior Laserion December 14, 2002

unf

A term used to express sexual desire

Unf that guy is so HOT!

by Hella cool April 18, 2014

Unf

Common word used on Tumblr when seeing a hot person.

hot.
UNF

by hookerific August 23, 2011

unf

Universal noise of fucking. Also used to describe someone attractive.

Damn, Alex Gaskarth is so unf.

by wtfamisupposedtoputhere? October 22, 2011

UNF

sexual. Accronym for "Universersal Noise for Fucking"
particularly heard during intercouse when the female moans but bites her lip to silence herself. "unf" heard as "uuuuhhhfff" or "ooooouuuhhhnnnnnfff"

"all that bitch could say was unf"

by -GT April 10, 2006

uNf

The noise that the Doom guy made when you tried to 'open' a wall like it was a door. uNF uNF

uNF uNF uNF uNF oh shit, this is a wall, not the door leading to the floating eyeball.

by dC//jANGEY June 11, 2003

Unf

Same as, "blown". Origin: The sound a guy makes when he cums.

"Unf, I have that paper due in two hours and I haven't even started."

by Awesomenesssss213 March 5, 2012