person 1: i had sex with an omlette in the middle of a mall while making eye contact with a security guard before being escorted out
person 2: you fucking what??? you goin to jail cuhhhhhhhhh
A sarcastic reply, used when you don't understand what the other person is saying (commonly technical).
Frenchie: C'est ville quos muos pume rouge j'aime marsh'mallo
Paul: I had one but the wheels fell off.
or
Person A: All you have to do is remove the hydraulic overhead slip ring so the cam will meet the side flange.
Person B: Yeah, I had one but the wheels fell off.