In contact sports when a player is hit, checked or tackled by an opponent so hard the equipment from the player being hit fall off the player and spread all over the playing surface. Make the playing surface look like the front yard at a Garage or yard sale covered in used sporting equipment. The opposition will then yell "Yardsale" to complete the act.
"Did you see me yardsale that guy last quarter. His helmet landed 10 yards away."