MUG

mug. Mug, n. a cup used to drink out of, fog, mist

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Mug (?), n. [[Cf. Ir. mugam a mug, mucog a cup.]] 1. 1. A kind of earthen or metal drinking cup, with a handle, — usually cylindrical and without a lip.
2. 2. The face or mouth. Thackeray.