Interjection
(vulgar, idiomatic) An expression of great indifference or nonchalance.
I was going to clean my room, but thought "fuck it, nobody's going to see it."
(vulgar, idiomatic) An expression of frustration.
Fuck it, I can't be arsed to look for that bloody key anymore.
(vulgar, idiomatic) An expression of anger or dismissal; forget it.
Honey, would you please help me serve the hors d'oeuvres?
You know,... I'm really busy right now hosting and entertaining all my friends...
Fuck it! I'll do it myself.
I think everyone should go on my diet. It's called the Fuck It Diet. Margaret Cho
There's a critical point, when you've stayed single too long, that your brain switches from "No, don't say that" to "Eh, fuck it. Say it, see what happens." Bill Burr
I never gave a fuck, I never gave a fuck what niggas thought about me. I mean, I did, but like fuck it. You know what I'm sayin'? Kid Cudi
America, America, please hear us when we call You got hip-hop, be-bop, hustle and bustle You got Atticus Finch You got Jane Russell You got freedom of speech You got great beaches, wildernesses and malls Don't let the might, the Christian right, fuck it all up For you and the rest of the world. Roger Waters
Then another penalty basically caused Pederson to say, “Fuck it, I give up,” and not kick the FG. Source: Internet