pàng-khang放空

to relax one's mind

to relax one's mind; to completely relax; to travel empty (without passenger or cargo); to deadhead; to miss the target; to boast; to brag

of a [[taxi]], etc.

English Wiktionary, “放空” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E6%94%BE%E7%A9%BA · confidence: Medium (Wiktionary)