Light or frivolous manner of discussing a subject.
[French, from persifler, to banter : per-, intensive pref. (from Latin; see per-) + siffler, to whistle (from Old French, from Late Latin sīfilāre, alteration of Latin sībilāre).]
1757, from Fr. persiflage, from persifler "to banter," from L. per- "through" + Fr. siffler "to whistle, hiss," from collateral form of L. sibilare "to hiss," possibly of imitative origin.