1 definition by ajf123

Top Definition
Great man, true jackass. Famous for many things on Jackass, Viva la Bam, Haggard, Gumball Rallies, and much more. Also known for sticking a car up his ass.

Died an unfortunate death, that he or no one deserved.
John: Hey did you see jackass last night?
Billy: Yeah dude, I almost died laughing when Ryan Dunn stuck that car up his ass!
by ajf123 June 20, 2011
Mug icon
Buy a Ryan Dunn mug!