Abbreviation for "Wall of Death/Doom," referring either to 1) a large barrier in exercise, or 2) a showcase for destroyed objects
"There's no way Mikey can climb that hill without a triple crank, it's a total WOD!"
"There's a 30' net climb at the end of this course, bro. Serious WOD."
"Every time I smash a guitar on stage I add a little piece of it to my WOD."