吹口哨 Traditional form: 吹口哨 Pinyin (reading): chuīkǒushào Definitions: to whistle Characters: 吹 - to blow, to puff; to brag, to boast 口 - mouth; entrance, gate, opening 哨 - to whistle; to chirp Traditional characters: 吹 - to blow, to puff; to brag, to boast 口 - mouth; entrance, gate, opening 哨 - to whistle; to chirp