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1. An expression of indifference, apathy, or nonchalance. "Feck" here is a euphemistic, though still mildly vulgar, substitution for "fuck." Primarily heard in Ireland. You know what, feck it, I'm tired of waiting—let's go home. A: "Do you want another drink?" B: "Feck it, why not? I'll just deal with the hangover tomorrow."
2. An exclamation of dismay, exasperation, anger, or frustration. Primarily heard in Ireland. Ah, feck it! I can't find my keys anywhere! Feck it, I just had the car fixed and now you've put a dent in it!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.