Fuck is the most versatile word in existence, being used as:
Noun: when you don't give a fuck.
Adjective: that was so fucking cool!
Exclamation: what the fuck!
Verb: I fucked my girlfriend, now I will fuck her again.
Verb #2: I will fuck you up.
Noun #2: Today I saw a dumb fuck.
Verb #3: Fuck this!
Transition link (emphasis): I love this pizza, fuck, I might get another one!
Or they all can be used together in one sentence.
Oh fuck, I might just fuck the living fucking shit out of that hot fuck! If anyone doubts me I will fuck them up! Fuck it!
It means to have intercrose but is also used for general profanity
WHAT THE FUCK!
Mom: Clean your room!
Me: Fuck Off!
Mum: *Grabs Belt*
Me: Oh FUCK!
The first thing you would say after you realise you haven't done your homework and you are already at school.
Maths teacher: Let me see who hasn't done their homework.
George: Fuck. FUUUUUUUUUUUUUUCK.
The first thing you would say after you remember you haven't done your homework and you are already at school.
Maths teacher: Let me see who hasn't done their homework.
George: Fuck. FUUUUUUUUUUUUUUUCK.
It's a compliment for everyone
Fuck you
Have a nice fucking day
You're fuck good sir