n.
Function: noun
Date: 1519
1 a : a blow or gesture made by the sudden forcible straightening of a finger curled up against the thumb b : a short sharp blow : BUFFET
2 : something tending to arouse or excite: as a : STIMULUS <just the fillip my confidence needed> <lent a fillip of danger to the sport> b : a trivial addition : EMBELLISHMENT <showy fillip s of language> c : a significant and often unexpected development : WRINKLE <plot twists and fillip s >