to quickly learn something or check that you know it, for example before an examination
And in the meantime, we need to mug up on a bit of history,' Mark put in comfortably.
I took my soup mug up to the counter, passing Mark without a word.
Laurel picked her mug up immediately, and a small wave of ale slopped over the brim and onto her hand.
mugs up
mugging up
mugged up
There is no origin for this phrasal verb
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