Source : Webster's Revised Unabridged Dictionary (1913)

Persiflage \Per`si`flage"\, n. [F., fr. persifler to quiz, fr.
   L. per + siffler to whistle, hiss, L. sibilare, sifilare.]
   Frivolous or bantering talk; a frivolous manner of treating
   any subject, whether serious or otherwise; light raillery.
   --Hannah More.

Source : WordNet®

persiflage
     n : light teasing