unf unf

The sound of humping.

OMG, that chick is so hot! Unf! Unf!

by Mary Anarchy February 25, 2004

unf unf unf

The universal noise of fucking.

Claire: I've been here the whole time.
Claire: unf unf unf

by prollygon August 22, 2011

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