When a male or female have had a bowel movement and not wiped properly. Creates a grainy texture and unpleasant smell.
Carla was in a hurry to get into bed with Earl and didn't wipe her ass well, so when Earl went down on her he got her booty crystals in his mouth.
by Girraffaelll69 June 16, 2015
Get the booty crystalsmug.