さっと (swiftly, deftly)

A 擬態語 (state mimetic) for a quick, light, deft motion — done in a single brisk sweep. Common with verbs of brief action: さっと走る ('dash off'), さっと取る ('snatch up'), さっと拭く ('give a quick wipe'), さっと済ませる ('knock something out quickly'). Conveys speed and cleanness of motion.