lump it very informal phrase
to accept a situation, even though you do not like it or agree with it
Thesaurus: to be patient, and to not complain too muchsynonym
Main entry: lump
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lump it
informal : to accept or allow something unpleasant or unwanted
— usually used in the phrase like it or lump it
Like it or lump it, the new law goes into effect today. [=it goes into effect whether you like it or not]
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Main Entry: ↑lump
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ˈlump it idiom
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I'm sorry you're not happy about it but you'll just have to lump it.
Useful english dictionary. 2012.