‘吐槽’ (tǔ cáo) literally means ‘to spit out a groove’—a humorous, metaphorical expression originating from Japanese anime/manga subculture (where ‘tsuho’ referred to audience commentary). In modern Chinese internet slang, it means to publicly mock, roast, or wittily criticize something—often in a lighthearted, ironic, or meme-driven way. It’s not harsh or malicious like ‘insult’; rather, it conveys shared amusement or gentle ridicule, typically on social media, forums, or livestreams.

The character 吐 (tǔ) means ‘to spit’ or ‘to eject’, suggesting the act of releasing something outward; 槽 (cáo) originally means ‘groove’ or ‘trough’, but here functions as a phonetic loan for ‘critique’ or ‘complaint’ (echoing Japanese ‘tsuho’). Together, they evoke the image of ‘spitting out one’s snarky commentary’. While often used as a verb, it can also function as a noun meaning ‘a roast’ or ‘a meme-judgment’.