口哨 kǒushào HSK7 whistle Origin Definitions Defs Strokes Stroke Words Sentences Sents 吹口哨 chuīkǒushào to whistle to produce a sound by puckering the lips and blowing口哨儿 kǒushàor whistle sound made by blowing through pursed lips, sometimes with fingers in the mouth; can also refer to a small whistling instrument