Modern usage is dominated by the official campaign
扫黑除恶 (sǎohēi chú'è, 'sweep away black [organized crime] and eliminate evil'), launched in 2018 against gang activity. Classical/wuxia usage:
除恶务尽 (chú'è wù jìn) 'when eliminating evil, do it thoroughly' — a set phrase from the 《
尚书》 still common in editorials.
