fuggedaboudit exclamation2 •(slang) Do not worry about it; it does not matter; it is beyond your control.Of course, someone might have concluded "fuggedaboudit," the cake mix won't sell. — 2002 •(slang) There is no hope of it being so, the idea is preposterous; do not waste my time with such notionsAnd Sunday . . . fuggedaboudit. You may as well have gone to school on Sunday. — 2003