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1.
When a male awakes the morning after having sexual intercourse, also known as copulation or coitus, goes to urinate and finds a hard cap of female ejaculation incasing the head of his penis.
Stinky woke up Sunday morning with a really bad hard cap, he told me.
by Stinky Hard Cap January 18, 2009
 
2.
n. The tightly packed, rabbit pellet like ball of fecal matter that gathers at the bottom of the intestines when a person is constipated. Often difficult and painful to pass.
After eating all that cheese, it took me half an hour just to shit out the hardcap.
by Resedo August 12, 2009