Fives, a bunch of the fist, the hand closed
Flag, groat, fourpence
Flame, a bit of muslin, a sweetheart
Flankey, the behind, the part you sit on
Flash of lightning, a glass of gin
Flash, language used by thieves, gypsies; to sport
Flashman, a prostitute’s bully
Flash cove, the keeper of a place for the reception of stolen goods
Flashing his gab, showing off his talk
Flash his ivory, showing off his teeth