Definition & Meaning of "coomer"in English

What is the origin of the term "coomer" and how is it used?

"Coomer" is an internet slang term that emerged around the mid-2010s on forums like 4chan to describe a person, usually a man, addicted to pornography and excessive masturbation. The word comes from "cum," referring to ejaculation, with the "-er" suffix to label someone defined by this behavior. It quickly became a meme representing compulsive sexual behavior, often exaggerated or caricatured in online culture. The term is derogatory and mocking, mostly used in humorous or critical contexts, and is rarely neutral.