Though it has probably been several years for you, I hear it at least twice a day at work. It became the go to joke around the office about six months ago with the arrival of our traffic manager Eliza. Ever since, I’ve learned things about my mom I’d never thought possible, such as: she’s what’s wrong with the printer; and she’s what got caught in my spam filter.
I was curious where this joke originated, so I did some research. I found that the official term for a “your mom joke” is a “maternal insult,” and that Shakespeare is often credited with the first zing. I would contest though, that “son of a bitch” is the first mom joke, and Wikipedia says that phrase dates back to 1330. The joke as we know it however, was popularized in the 90’s by the show “In Living Color,” and today lives on through a small office in Midtown Atlanta.