(1) Any amount of
jizz that successfully evaded detection post-ejac, but is discovered unintentionally at a later date.
(2) Anything so bad that its existence is comparable to that of left-over
jizz/vaginal fluid; an exclamation of a situation's ability to evoke in you the feeling of finding dried
semen someplace you hadn't expected it to be.
Example #1:
- Dude, what's this white stain on my hamper?
- Oh shit, I thought she caught it all last
night. That's just my cumscuttle.
Example #2:
- Women's
rights?
- Oh
fucking cumscuttle.