What does the word mug mean?

Usage examples for mug

  1. Old Gillman refilled his mug. – Martin Pippin in the Apple Orchard by Eleanor Farjeon
  2. Anderson made two moves: he raised his head, and he spun the beer in his mug so its center surface sank and the bubbles whirled. – Breaking Point by James E. Gunn
  3. Sir Thomas is giving the soldiers their tea in a mug! – Further Experiences of an Irish R.M. by E. OEnone Somerville Martin Ross