(slang, vulgar) A stain from ejaculate.
You've got so many cumstains on your shirt if I shined a black light at you, you'd look like a Jackson Pollock painting.
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(slang, vulgar, derogatory, offensive) A term of abuse.
I'm not listening to a word out of that cumstain's vapid mouth.
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The vocabulary of software engineers, AI researchers, and anyone living in a terminal or on GitHub — from LLM to MCP, CORS to vibe coding, agentic to enshittification.
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