toro（トロ）
toro describes the moment when a soft or semi-melted substance begins to loosen and move.
su（スッ）
1. Quick, smooth bodily movement
don（ドン）
don describes a deep, resonant impact sound or a strong, attention-grabbing emphasis.
yura-yura（ユラユラ）
yura-yura describes a gentle, slow, and continuous swaying motion.
hiso-hiso（ヒソヒソ）
hiso-hiso describes speaking quietly in a low, secretive voice.
piku（ピク）
piku describes a small, quick, involuntary movement that occurs in response to a stimulus.
kuru-kuru（クルクル）
kuru-kuru describes a continuous spinning or turning motion, typically in a circular pattern.