A large cup for hot liquids, usually having a handle and used without a saucer.
The face, often used deprecatingly.
A gullible or easily-cheated person.
A stupid or contemptible person.
Motherfucker (usually in similes, e.g. "like a mug" or "as a mug")
To strike in the face.
To assault for the purpose of robbery.
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 photograph for identification; to take a mug shot.
To learn or review a subject as much as possible in a short time; cram.
Easily fooled, gullible.