Fuhgeddaboudit is like if you agree with someone, you know, like "Raquel Welsh is one great piece of ass, fuhgeddaboudit." But then, if you disagree, like "A Lincoln is better than a Cadillac? Fuhgeddaboudit!" you know? But then, it's also like if something's the greatest thing in the world, like "Minga! Those peppers? Fuhgeddaboudit!" But it's also like saying "Go to hell!" too. Like, you know, like "Hey Paulie, you got a one inch pecker?" and Paulie says "Fuhgeddaboudit!" Sometimes it just means forget about it.
Caution: R-rated language below
And if you're looking for some other common Brooklynese: Try these on for size: Getouttahere!, Eatcha heart outcha bums!, not for nothin..., whattayagonnado, Yo! Commere!, and last but certainly not least,I'm just sayin!