When a girl snorts coke off a penis and then they partake in anal, with small amounts of coke residue still remaining on the penis.
After the bar we went back to her place and we got high and I gave her the dusty plunger.
adj: can be used to describe a person who is emotionally dry
Example: Iman is so crusty dusty, she didn't even cry at the end of Titanic.
Me, It’s me Austin I’m telling you see💀 -M
Person 1: I will legit make a definition of crusty dusty and make it right now
Person 2:Do it I fudging dare you
Post menopausal lady who has not had a sexual encounter with man nor beast for twenty plus years
Breasts that have gone south through lack of manipulation and fondling, resulting in the gathering of dust particles and dust mites through neglect and lack of attention
My god if you dont get some action soon you will end up like dusty melons next door
Him: hey babe would you send me a pic
Her: of my dusty starfish? Sure <3
When a man gets a handjob from a woman with chapped hands and it leaves dandruff-like residue on his penis
Roberta, yo knuckles ashy as hell. Don't nobody want a handjob from you, wind up with a dusty hotdog.