Definition of “come back to bite sb” - English Dictionary

british dictionary

“come back to bite sb” in British English

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come back to bite sb

If something will come back to bite you, it will become a bigger problem in the future because you have not dealt with it:

If I don't do something now, the issue might come back to bite me.

(Definition of “come back to bite sb” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)