crustulating
It's like when a Sarah gets tons of jizz on her body and then uses cardboard paper to scrub it all off but it makes a cum-shield in the color of a glazed donut.
The semen is crustulating in Sarah's belly button
crustulate
the crap on things like cheese or chocolate when you end up burning it and it forms on the edges making a disgusting crustulation
damn bitch you overcooked my cheese now there is all this fucking crustulated shit around it ... damn hoe face!!
crustule
a crusty pustule
Joe finally popped that pimple, but now he's got a crusty scab. His pustule has become a crustule.