Emily Dickinson Lexicon

FLIP'PANT, a. [W. llipanu, to make smooth or glib, from llib, llipa, flaccid, soft, limber; allied to flabby, and to glib, and probably to L. labor, to slide or slip, and to liber, free. Class Lb.]

1. Of smooth, fluent, and rapid speech; speaking with ease and rapidity; having a voluble tongue; talkative.
2. Pert; petulant; waggish. Away with flippant epilogues. Thomson.