Fuck 

An acronym with no formal etymology:

F.U.C.K

"Formal Use (of) Carnal Knowledge"

----->Carnal; Adj: the flesh in terms of sex

Has been bastardized to many other definitions:
n.) in reference to a person causing frustration

v.) in reference to fornication
v.)in reference to ruining something beyond repair
adj.) used to emphesize what is being described

F.U.B.A.R = "Fucked Up Beyond All Recognition"

(n.) "You dumb fuck!"
(v.) "It fucked everything up."
(adj.) "That's fucking stupid."

Fuck by StylishHeadwound March 1, 2010

Fuck 

Why would anybody search up the word 'Fuck' on the dictionary? What kind of idiot are you, man?

Fuck you, you're such an idiot.

Fuck by ioverusethewordfuck October 23, 2011

Fuck 

To engage in meaningless sex.

Boy: Hey your fine as hell

Random Girl: Aw Thank you!

Boy: Wanna go fuck?

Fuck by AskingSevenfold October 3, 2011

Fuck 

Sex without meaning. no strings attached.

We fucked so hard last night.

Fuck by Shoe. June 8, 2013

Fuck 

why in the fuck would you look fuck up on the urban Dictionary? Ehh makes sense so we cool we cool But the definition is hard sexual content

i fucked her soooooo hard!

Fuck by Dwaaaaaaaaa October 10, 2014

Fuck 

Having sex

We were fucking in the car.

Fuck by Heeeeyeyyeyey January 3, 2019

fuck 

hard core ,in the vagina hit hard and repeatedly

me; wanna fuck

her; yes

fuck by crazy_def January 17, 2019