from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A heavy cylindrical drinking cup usually having a handle.
  • noun The amount that such a cup can hold.
  • noun The human face.
  • noun The area of the human mouth, chin, and jaw.
  • noun A grimace.
  • noun A mug shot.
  • noun A thug; a hoodlum.
  • noun Chiefly British Slang A victim or dupe.
  • intransitive verb Informal To photograph (a person's face) for police files.
  • intransitive verb To threaten or assault (a person) with the intent to rob.
  • intransitive verb To make exaggerated facial expressions, especially for humorous effect.

from The Century Dictionary.

  • noun A small cylindrical drinking-vessel, commonly with a handle; a small jug.
  • noun The contents of a mug; as much as a mug will hold: as, a mug of milk and water.
  • noun A. fog; a mist.
  • noun The mouth or face.
  • noun A. grimace.
  • To distort the face; make grimaces.
  • To cram for an examination.
  • noun Same as green gram (which see, under gram).

from the GNU version of the Collaborative International Dictionary of English.

  • transitive verb To take property from (a person) in a public place by threatening or committing violence on the person who is robbed; to rob, especially to rob by use of a weapon such as a knife or gun.
  • noun A kind of ceramic or metal drinking cup, with a handle, -- usually cylindrical and without a lip.
  • noun Slang The face or mouth; ; -- often used contemptuously.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective archaic Easily fooled, gullible.
  • noun A large cup for hot liquids, usually having a handle and used without a saucer.
  • noun slang The face, often used deprecatingly.
  • noun slang, vulgar A gullible, ignorant or easily-cheated person.
  • verb transitive To assault for the purpose of robbery.
  • verb intransitive To exaggerate a facial expression for communicative emphasis; to make a face, to pose for photographs in an exaggerated or affected manner.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)
  • noun a person who is gullible and easy to take advantage of
  • noun with handle and usually cylindrical
  • noun the quantity that can be held in a mug
  • verb rob at gunpoint or with the threat of violence


from The American Heritage® Dictionary of the English Language, 4th Edition

[Perhaps of Scandinavian origin.]

from The American Heritage® Dictionary of the English Language, 4th Edition

[Probably from mug (possibly in allusion to mugs decorated with grotesque faces).]

from Wiktionary, Creative Commons Attribution/Share-Alike License

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  • You're such a mug.

    (That's not slang for something, I'm just literally calling you a coffee mug.)

    March 5, 2018