Sunburn snowstorm
This is what happens when you get a really bad sunburn and the dead skin flakes off when you rub the affected area, hence giving the appearance of a miniature snowstorm.
"Duuude, check this out!! It's a sunburn snowstorm!"
"Don't do that here! You're getting that crap all over my bed!"
"Don't do that here! You're getting that crap all over my bed!"