- loser
- lotion
- lousy
- lovely
- lunger
- lurk
- lush
- mae west
- mag
- main line
- mama
- mamma
- main drag
- mainline
- make
- malarkey
- mammae
- man
- mash
- map
- marble
- matlo
- matlow
- mean
- meant
- measly
- masher
- matelot
- mater
- medic
- mellow
- melon
- men
- mellowy
- melon-cutting
- mitten
- milk
- milling
- mitt
- mitten money
- mobster
- mice
- mill
- mix
- mizzle
- moke
- molotov coctail
- momma
- monday
- monkey
- moll
- money
- moon
- moonshine
- moonshiner
- mop
- move
- moxie
- mort
- mortal
- most
- mouthpiece
- mug
- molly
- Molotov cocktail
- mom
- mooch
- mouch
- mouldy
- mouse
- mud hog
- mull
- murphy
- mutt
- mutton chop
- murder
- muscle
- mush
- mustang
- muzz
- nark
- mustard
- nail
- napoo
- necessary
- necking
- nervy
- nickel nurser
- neck
- needful
- needle
- nick
- nifty
- nip
- nitery
- nix
- no-bon
- nob
- nobby
- nod