The abbreviation "jfc" stands for "Jesus f***ing Christ." It is often used in informal communication, particularly in texting and on social media, to express strong emotion such as frustration, disbelief, or exasperation. It is usually utilized as an exclamatory phrase when someone encounters a situation that is incredibly annoying, shocking, or overwhelming.
The phrase comes from the combination of the name "Jesus Christ," a central figure in Christianity, and a vulgar expletive that amplifies the emotional intensity of the expression. Its use is primarily rooted in contemporary slang and has become popular in digital communication.