an abbreviation for first and fifteenth; the days when welfare checks are issued and therefore the days that hustlers and dealers make the most money. Also Lupe Fiasco's record label and catch phrase.

First and Fifteen, Lupe Fiasco's record label. Named after the street corner he grew up on in Chicago.

First night fuck, you got to the bar on friday hoping to meet a girl and fuck her that night hence the FNF first night fuck

Abbreviation for "Fuck Nigga Free", to no longer be associated with a whack pimp or shitty boyfriend and be with:
1) a better pimp, mostly someone who provides you with all your necessities, takes care of you and protects you (unlike a whack pimp that will just use your money to bump other bitches or buy a chain he doesnt deserve)
2) a better boyfriend, one that loves you for who you are and doesnt disrespect your hustle, or take advtange of you for your money. (And moreso someone that doesnt see you dancing forever)

3) being single and happy with being on your own and making your own money

noun. F.n.F. is otherwise an acronym for Fat Nigga Finesse. It is only given to the nibbas that finesse their way out of or through any situation.
verb. The act of FnFing is when a nibba can manage to finesse his/her way out of any situation with relative ease.

Fault Not Found - Term used by engineers to describe the outcome of testing something and not finding anything wrong.