sit-tsiok失足

to lose one's footing

to lose one's footing; to slip; to misstep; to take a wrong step in life; to commit a crime; to prostitute oneself

English Wiktionary, “失足” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E5%A4%B1%E8%B6%B3 · confidence: High (Wiktionary, PH/Quanzhou/Jinjiang)