Unff 

The noise made when one spots an attractive young blonde with a vast collection of sweaters and books. Said attractive blonde may be sardonic in nature, and most likely enjoys dressing as 13 year old children.

Unff look at that broad.

Unff by le me September 15, 2012

Unff 

Unfucking fair.

Him: Finished! *rolls over and goes to sleep*
Her: Unff! *rummages through bedside drawer*

Unff by Firm-hand February 19, 2025

unfff 

A term used on tumblr and other sites usually posted in conjunction with a picture of attractive people/persons maintainer of said site would have no qualms fucking

Person 1: I'm going to post a picture of some cute hipster chick on tumblr! what should I tag it as?

Person 2: why not use unfff?

unfff by whatnotery August 23, 2011

unfff 

Scientifically proven sound a man makes when kicked in the testes.

Captain Falcon: FALCON... PUUUUNCH AT BALLS

Innocent bystander: OH SHI--UNFFF.

-Graphic Image-

unfff by The Captain Falcon in example. September 27, 2010

UNFFGG 

Universal Sound of Fucking For Gay Guys

Damn! Taylor Lautner is UNFFGG!

UNFFGG by azn_whiz December 17, 2010