What's the verb for mugging? Here's the word you're looking for.
mug
(transitive, obsolete, Britain) To strike in the face.
(transitive) To assault for the purpose of robbery.
(intransitive) 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.
(transitive) To photograph for identification; to take a mug shot.[1]
(Britain, Australia, slang) To learn or review a subject as much as possible in a short time; cram.