adverb, noun or participle which takes 'suru'
cool and breezy; refreshingly cool
Describes a pleasant cool sensation from moving air, or a refreshing aftertaste (e.g., mint). Often used adverbially or with する.
窓を開けたら、風がスースー入ってきて気持ちいい。
When I opened the window, a cool breeze came in and it feels nice.
この歯磨き粉はスースーする。
This toothpaste gives a cool, refreshing sensation.
noun
hissing sound of air; soft breathing sound
Mimics the sound of air leaking or a sleeper's gentle breathing. Used as a noun or adverbially.
タイヤからスースーと空気が漏れている。
Air is hissing out of the tire.
赤ちゃんがスースーと寝息を立てている。
The baby is breathing softly in sleep.