FLASH YOUR IVORY. Laugh; show your teeth.
FLASH-DRUM. A drinking-place resorted to by thieves.
FLASH-HOUSE. A house of resort for thieves.
FLASH-KEN. A thieves' boarding-house.
FLASH-MAN. A fellow that has no visible means of living, yet goes dressed in fine clothes, exhibiting a profusion of jewelry about his person.
FLAT. A man that is not acquainted with the tricks and devices of rogues.
FLATTER-TRAP. The mouth.
FLAWED. Half-drunk; quick-tempered; not exactly honest.
FLAY. To vomit.
FLESH-BROKER. A match maker; a procuress.