Definitions
1.nounThe action of holding the tip of a finger against the thumb and then releasing it with a snap; a flick.
2.nounA smart strike or tap made using this action, or (by extension) by other means.
3.noun(by extension) Something unimportant, a trifle; also, the brief time it takes to flick one's finger (see noun sense 1); a jiffy.
4.noun(by extension) Something that excites or stimulates."The athlete’s victory provided a much-needed fillip for national pride."
5.verbTo strike, project, or propel with a fillip (that is, a finger released quickly after being pressed against the thumb); to flick.
6.verb(by extension) To project quickly; to snap.
7.verb(by extension) To strike or tap smartly.
8.verbTo drive as if by a fillip (noun sense 1); to excite, stimulate, whet."The spicy aroma filliped my appetite."
9.verbTo make a fillip (noun sense 1) (with the fingers).