1) a male whose commitment to nudity stops above the waist. 2) a common phenomenon among cartoon characters wherein the character is deprived of pants; see Donald Duck, Ziggy, Winnie the Pooh, etc.
I got invited to go to Burning Man this year, but was scared off by the sheer number of shirtcockers in attendance.
by Charles Worschatz July 13, 2006
a guy at the Burning Man Festival who walks around with a shirt on and no pants, with genitalia exposed.
by chickenbacon September 27, 2007
A committed nudie who hangs out at hotsprings, burning man, nude beaches, clothing optional clubs etc. who sometimes wears just a t-shirt while his junk is flopping around for all the world to appreciate.
by Jackson 5 August 31, 2006