Aftershock noun, the pain felt while showering after a mud run, when previously unknown cuts become apparent (and stingy)
Bake 'n' cake verb, to stand in the sun until the mud becomes a dirty crust
Barbie-queue noun, the line that forms at the barbed-wire obstacle as people try to figure out how to navigate it
Belly slop noun, when a runner misjudges a dryish piece of ground for a slick one, attempts a belly slide, but plants themselves embarrassingly in the ground
Fon-dudes noun, someone so covered in mud they look like they were dipped in a chocolate fountain
Slip-slops noun, they were once training shoes but are now all-but useless after a mud race
Woodstocks noun, term used for fields that host mud-race events.