white flaky stuff that comes out from your scalp when either you haven't washed your hair in a while or if you have a dry scalp.
-people might think it's nasty if they see it on someone.
Dandruff is a new sex term for when a guy cums in a bag and lets it sit for 2 weeks until it dries. Then whips the bag out of his closet while doing his lady friend in the behind and crushes the solid cum to make dusty dandruff like flakes that land in her hair. Dandruff.