"Fuck" isn't an adjective. The gerund form "fucking" and the past tense "fucked" can be used as participial adjectives.I will never get some people's hangup regarding the word "fuck" and its derivations. I mean, it's fine, but I just don't get it. It's just a word that, if used as an adjective, hurts nobody.
(Okay, so I'm a Grammar Nazi.)