Desert crust is the dried fecal matter that results after a person shits their pants during the extreme heat. It is often seen on the Las Vegas Strip where drunk college students and Midwestern NASCAR fans can be seen wondering the sidewalks with tall drinks and brown trouts.
We saw some desert crust today! Cindi and Larry got shitfaced while playing video poker and when they stumbled onto The Strip it only took a few minutes for their ass gravy to harden into desert crust.