1.For some-one to fall or trip and hit the ground making a thumping sound with some yelling "YARDSALE!" in the background.
2.For something to smash or break and some-one has to yell "YARDSALE!".
3.When Skiers or snowboarders eat shit.
1. "Man that reatrd fell out of his chair and had a big yard sale."
2."My friend smashed a coffe pot at tim hortons just so i could yell YARDSALE"
3.Avalanche + Snowboarder=YARDSALE!