n. When it comes time in a porn star's life, her ass dramatically sags, and the guys in the film slap it like a banjo.
"She was a pretty hot bitch, but now her ass is a busted trunk, and reeks of sardines." 
"During the filming of 'Prom Night', Mercedes got a busted trunk."
"During the filming of 'Prom Night', Mercedes got a busted trunk."
by MMjr March 27, 2009
Get the busted trunkmug. When you forget something in the trunk of your car, so when you go get it you decide to bust a quick nut in your trunk no matter where you are.
by Tony two timez  January 22, 2018
Get the Trunk bustmug.