piri（ピリ）
piri describes a sharp, slight, and momentary reaction caused by a thin or pointed stimulus.
kin（キン）
kin describes a sharp, high-pitched metallic sound produced when metal objects strike each other.
kin-kin（キンキン）
1. Sharp, continuous metallic ringing (Giongo)
paki-paki（パキパキ）
paki-paki describes sharp, crisp cracking or snapping sounds produced when something stiff or brittle bends, breaks, or moves.
pika（ピカ）
pika describes a brief, sharp flash of light occurring in a single moment.