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general::
Phrase(s): might as well [and] may as well
a phrase indicating that it is probably better to do something than not to do it. • Bill: Should we try to get there for the first showing of the film? Jane: Might as well. Nothing else to do. • Andy: May as well leave now. It doesn’t matter if we arrive a little bit early. Jane: Why do we always have to be the first to arrive?
McGrawhill's American Idioms And Phrasal Verbs