smirk பல்லை இளி pallai iḷi (palle iḷi) (6b intr) smile in a self-satisfied, knowing, irritatingly smug or silly way; smile as if gloating; simper, snigger, leer
Usage:
எதற்காக நீ பல்லை இளிக்கிறாய்? etaṟkāka nī pallai iḷikkiṟāy? edukkaaha nii palle iḷikree? What are you smirking about?