From Longman Dictionary of Contemporary Englishlump itlump itinformalACCEPT to accept a situation or decision you do not like because you cannot change it They’ve been told: take the lower interest rate, or lump it. It’s the law so you can like it or lump it. → lump
Examples from the Corpus
lump it• I don't like it-but I can lump it!• If I were you I'd tell them if they don't like it, lump it.• They've been told: take the lower interest rate - or lump it. 