MOUNTERS. Fellows who hire clothes to wear for a particular occasion; those who wear second-hand clothes.
MOUSE. Be quiet; be still; talk low; whisper; step light; make no noise; softly.
MOUTH. A noisy fellow; a silly fellow.
MOUTH IT. Speak loud.
MOUTHING. Crying. "The mort is mouthing," the girl is crying.
MOVED. Bowed to. "The swell moved to the Moll as they crossed," the gentleman bowed to the girl as they passed each other.
MOW. To kiss. "The bloke was mowing the molly," the man was kissing the girl.
MUCK. Money.
MUCK-WORM. A miser.
MUD. A fool.