r-u-n-n-o-f-t 

The condition of having left or abandoned someone or someplace, often abruptly, under difficult or unpleasant circumstances, and with the implication of not intending to come back. Colloquial misspelling of "ran off." The term is derived from the movie O Brother, Where Art Thou, in which an rather unlearned character wishes to convey to other characters that his wife left him but does not wish to say so aloud in front of his son.

Mrs. Hogwallop done r-u-n-n-o-f-t.

r-u-n-n-o-f-t by Edward January 6, 2004

T.N.B.F.N.M.

Slang acronym. Satnds for:
Trust No Bitch, Fear No Man

Often used as myspace headline. "T.N.B.F.N.M."

T.N.B.F.N.M. by Urban Dictionary April 11, 2008

F&N 

Frequently used in rap music.

F&N refers to the firearm brand Fabrique Nationale Herstal, the gun company produces many guns including the FN Five-seveN®, and the FN P90®, among others, which pierce bullet proof vests.

F&N go pop-pop-pop-pop-pop
-Good Gas, Hauhwii

F&N by Deinitialize September 20, 2020

f'n'd 

To find a lady friend, have sexual intercourse and then send her on her way. In other words Fuck aNd Dump.

I f'n'd Mrs. Harris (quote from Dimmy)

f'n'd by Ahad Malik February 14, 2006

F.N.G. 

Fucking New Guy.
A term used in 'Nam to denote someone new in country. Troops who had some time under their belt wouldn't talk to them until they proved that they wouldn't die within the first few days.

So you're the fng? Don't get shot.

F.N.G. by Spyknij September 14, 2003

M.O.A.F.N 

Me On A Friday Night. See something relatable or particularly unusual e.g. Weird dance. If you were experience these topics or see something relating to these then you would state the sentence 'me on a Friday night'. For short 'M.O.A.F.N'
Much like using the word 'mood'

Someone:"Look at that weird guy over there!" Me:"M.O.A.F.N"

M.O.A.F.N by 👅Yazz👅 December 9, 2018

F.N.G. 

Fuckin' New Guy. Term still used in the western English-speaking armed forces of the west (primarily United States, Australia, United Kingdom and Canada) to denote a new soldier fresh off his basic training. It means they have the basics but no real experience, so they do everything by the book (which is not always best) and they are overly keen and always shut down on long excersices.

Some people stay F.N.G.'s for years, however most switched-on soldiers lose the status within a year.

F.N.G. by jon999999 October 13, 2006