Dried up semen on something or someone that resembles that crust find around a milk cap. Commonly found on your sheets after masturbation, wet dreams, or intercourse.
Jim: I need to wash my sheets really badly.
Bob:Why?
Jim: Because there's milk cap crust all over them.
by Jerknuggett November 16, 2009
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A term used by people who don't know what "Poggers" means.
Dank memer : Bro, poggers
Virgin : Milk caps?
by shoppingkartman January 1, 2021
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