Euphemistic form of fuck it.

(intransitive, slang, vulgar, chiefly African-American Vernacular) To engage in a risky course of action, and then experience the consequences of so doing.

present participle of fuck around and find out

(often sarcastic) A great amount of fun or enjoyment, or something or someone that provides this.

Alternative form of fuck like rabbits

plural of fun-lover

plural of algebraic fundamental group

(algebraic geometry) A group which is an analogue for schemes of the fundamental group for topological spaces.

Sporting colours awarded by a university or other institution for the highest level of sporting achievement, especially and originally at Oxford and Cambridge Universities in England; contrasted with half blue.

(US, religion) Alternative form of Fundamentalist Church of Jesus Christ of Latter-Day Saints