To exaggerate a facial expression for communicative emphasis; to make a face, to pose, as for photographs or in a performance, in an exaggerated or affected manner.
To assault for the purpose of robbery.
To photograph for identification; to take a mug shot.
To learn or review a subject as much as possible in a short time; cram.
Uninteresting or unpleasant.
A stupid or contemptible person.
A gullible or easily-cheated person.
The face.
A criminal.
A large cup for beverages, usually having a handle and used without a saucer.
Motherfucker (usually in similes, e.g. "like a mug" or "as a mug")
To have (a smile) on one's face.
To express by smiling.
To express amusement, pleasure, or love and kindness.
To be propitious or favourable; to countenance.
To look cheerful and joyous; to have an appearance suited to excite joy.
Favour; propitious regard.
A facial expression comprised by flexing the muscles of both ends of one's mouth, often showing the front teeth, without vocalisation, and in humans is a common involuntary or voluntary expression of happiness, pleasure, amusement, goodwill, or anxiety.