n. [ Scot. huggrie-muggrie; Prov. E. hugger to lie in ambush, mug mist, muggard sullen. ]
Many things have been done in hugger-mugger. Fuller. [ 1913 Webster ]
a.
n. A thief who takes property by threatening (or performing) violence on the person who is robbed; a person who commits a mugging; one who mugs. See mug, v. t.