khiau-kha蹺跤

to sit with one foot raised up on a chair

to sit with one foot raised up on a chair, or resting on the other leg's thigh forming a triangle shape.; to sit idly; to while away the time.

English Wiktionary, “蹺跤” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E8%B9%BA%E8%B7%A4 · confidence: Medium (Wiktionary)