It's an acronym for Compulsory Heterosexuality. It's a form of masking that lesbians develop because of cultural pressures to be in romantic relationships with men.
Note-
Gay men can experience this, but not in the same way as lesbians do, since it's part of the intersectionality of patriarchy and queerness.
Person 1: Hatchi is definitely bi she raves about how she's in love with so many men.
Person 2: She stated "No matter how hot a guy is, I wouldn't like him if he was empty inside", she clearly was dealing with comphet.
Person 1: Oh that makes sense. She had fantasies about Nana, but didn't with any men she had been with.