While playing the sport lacrosse, the act of having your stick hit out of your hands, which triggers every player on the field's yelling out "Yardsale!". It is called this because it is lying on the grass as if you were trying to sell it on your lawn.
Lacrosse Player 1: "Nick just had his stick hit out of his hands!"
Lacrosse Players 2, 3, 4, 5, 6, 7, and 8: "Yardsale!"
A lacrosse term used when a player of the opposing team is stick checked hard enough that he drops his stick, causing him to sometimes fall, keep running, or grab his head in disgust before being laid out by a longpole.
Jeb always tries to beat me with a cross but I know excactly where to check to get that nasty yard sale.