kyaa-kyaa
High-pitched excited squealing, typically from girls or children. Can be from excitement, delight, or playful fear.
💡Kids on a roller coaster — 'The children were kyaa-kyaa screaming with excitement.'
子供たちがプールできゃあきゃあとはしゃいでいる。
The children are kyaa-kyaa squealing in the pool.
The fans were ___ screaming when the idol appeared on stage.
アイドルが登場してファンが○○と叫んだ。