mug up

verb

Definition of mug up

British
: to study intensively (as for an examination)
: to work up by study

Recent Examples of mug up from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mug up.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of mug up

circa 1860

in the meaning defined at intransitive sense

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having an air of easy unconcern

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