34-year-old Dunn appeared in all of the "Jackass" movies -- famously shoving a toy car into his rectum in the first flick back in 2002.
Dunn and an unidentified person both died in the crash which happened around 3 a.m. at Route 322 and New Street in West Goshen Township. It's unclear who was driving the car.
Just hours before his death, Dunn posted a photo on Twitter showing himself drinking with friends.
This is sad man, I was a huge Dunn fan. Other than Steve-O, nobody took more crazier stunts than this. I just hope he wasn't drunk, because a picture has been up of him drinking just a few hours before. If that's the case, then that really sucks. Anyway much respect to Dunn, several funny stunts especially the toy car one.