Flag, a groat.
Flash, a periwig.
Flaybottomist, a bum-thrasher, or schoolmaster.
Flick, old-fashioned, or sly.
Flicker, a drinking-glass.
Flicking, to cut, cutting; as flick me some panea and cassan, cut me some bread and cheese.
Flute, the recorder of London, or any other town.
Flyers, shoes or boots.
Fogus, tobacco: tip me a gage of fogus; give me a pipe of tobacco.
Froglanders, Dutchmen.