English dictionary mug up meaning and definition Definition and meaning of mug up at MeaningMonkey.org. mug up meaning and definition in the English Dictionary. MUG UP verbDefinition of mug up (verb)study intensively, as before an exam"I had to bone up on my Latin verbs before the final exam"synonyms: bone, bone up, cram, drum, get up, grind away, swot, swot up Source: Princeton University Wordnet
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