For all of you vulgar people it can also mean the abbreviation for Unified National Fine (as in thread of a mechanical device that has a spiral groove cut in it for holding and fastening things together, most times called a "screw" that has no connotations to vulgarity.
by 1ofmanytoo July 12, 2011

Any sort of vigorous sexual intercourse. "Unf" being the sound one might make, as in;
"Unf unf unf..."
"Unf unf unf..."
Brian and his boyfriend were unfing in his car like the whole time; I only saw them at the end of the night.
by mini-taur August 10, 2016

The University of No Football; Home of the Osprey; Also known as The University of North Florida. It is a relatively good school in Jacksonville, Florida that has NO FOOTBALL TEAM. Before attending this school students are blinded by the nice campus and good food so they don't realize there's NO FOOTBALL TEAM until it's too late.
Gator: " Hey, What school do you go to? "
Osprey: " UNF. "
Gator: " Damn. So... No hot football players? "
Osprey: " None at all. "
Osprey: " UNF. "
Gator: " Damn. So... No hot football players? "
Osprey: " None at all. "
by kcoffayy November 15, 2010

A virginal, completely stupid onomatopoeia that teenage girls use to show that they are dry masturbating through their pants to photos of hot men online, mainly on Oh No They Didn't!.
Girls, if you find him truly hot, use the word SHLICK instead, it's sexier.
Girls, if you find him truly hot, use the word SHLICK instead, it's sexier.
UNF he's hot
by 207shawdy March 06, 2009

UNF, aka, University of North Florida, is located in Jacksonville, FL. It is the best school not only in Florida, but the country. It has the newest buildings, best food, private and large dorms, and the best weather in the US. It is an honor to be accepted to unf. It is also college to the tannest and hottest girls and guys. ;) oh and it has a lazy river. and b.o.b. is performing for free next month. just another added bonus. and its five minutes from the beach, just sayin'
by UNF is amazing July 20, 2010
