The slang dictionary

by John Camden Hotten

Mountain-dew, whisky, advertised as from the Highlands.

Mountain-pecker, a sheep’s head. See [JEMMY].

Mourning, “a full suit of MOURNING,” two black eyes; HALF-MOURNING, one black eye.

Mouse, a black eye. By a façon de parler, any one with “a MOUSE” is supposed to have been to Blackwall.

Mouth-almighty, a noisy, talkative person.

Mouthpiece, a lawyer, or counsel. Thieves and their associates always speak of a counsel as a MOUTHPIECE.

Move, a “dodge,” or cunning trick; “up to a MOVE or two,” acquainted with tricks. Probably derived from the game of chess.

M.P., member of the police, one of the slang titles of the Force.

Mrs. Grundy, the representative of the censorious world, “What will Mrs. Grundy say?” Originally a character in the comedy of Speed the Plough.