1) Bonk 2) Dammit 3) Eff 4) Fornicate 5) Nookie 6) Nooky 7) Screwing 8) Shtup 1) Bump uglies 2) Carnal knowledge 3) Coition 4) Coitus 5) Congress 6) Copulation 7) Exclusively Anglo word 8) Exclusively Saxon word 9) French word used in English 10) Fucking 11) Have sexual intercourse with 12) Intercourse 13) Nookie 14) Nooky 15) Piece of ass 16) Piece of tail 17) Relation 18) Roll in the hay 
Fuck is an English-language word, a profanity which refers to the act of sexual intercourse and is also commonly used to denote disdain or as an intensifier. Its origin is obscure; it is usually considered to be first attested to around 1475, but may be considerably older. In modern usage, the term fuck and its derivatives (such as fucker and fuck...
Fuck is properly slang for sexual intercourse, but also used to describe sex in general.
[n] - slang terms for sexual intercourse
properly slang for sexual intercourse, but also used to describe sex in general.
fucking noun slang for sexual intercourse