When you have a poop and if you don’t wipe properly the poop will cause skid marks and when it dries the poop will go crusty which results in crusty pants
A sexual act of cumming on a woman's vagina she then let's it get flakey you then lay on a bed as she squats over your face. The woman then shakes her hips letting cum flakes gracefully land on your face.
Last night my wifecrusty crouched me it was a team effort but the reward was a crusty face
For example, Jamie McColgan was asked to get chocolate from downstairs by his loving sister as Jamie is very sneaky. Jamie said no! Therefore Jamie is a Crusty Dusty Dino.