A man who jumps into your car and tells you to drive. When you stop, he steals whatever is in the car, jumps out and says 'Boo ya!'. This man could be drunk or have a gun or both, and he could also be extrememly tattooed.
The phrase is used in a TobyTurner Youtube video, when he is talking about how his MacBookPro, iPad, camera and expensive electric shaver got stolen. The phrase was coined by Toby's friend Tanya's friend, Eddie.
"Somebody jumped into my car - it was me and Shaun. We're in the car, somebody jumped in, just totally drunk, and basically told us to drive - he didn't have a weapon or anything or a gun, but he had his hand in his pocket, and he was a shady character, and he was talking about, you know, just slurring a bunch of random things to, like, get us to drive, and then he just kind of more... " - Toby Turner
"I'm going to the Police Station after that with this Americano. I'm gonna tell them he had tattoos... the In-N-Out Burglar
!" - Toby Turner