A Christmas dump is such a universally experienced phenomenon when one enormously relieves themselves after the holiday season, having eaten all the good food.
This term can be used for other holidays as well, ie. Thanksgiving dump or just simply Holiday dump.
Oh, man I just had my Christmas dump, it was crazy!
I’m glad we are finally home, I have to do a Thanksgiving dump.
That horrible feeling before leaving for work or at work when one exists in a state of needing to shit and not wanting to shit, whose outcome is determined by the observer of the phenomenon.
I really needed to leave for work, but I had a bad case of Schroedinger's Dump going on.
Drop the cum dump means jerking off or masturbating, and yeah... i don't think it's a better way to say you want to jerk off today either, but still...
Ay bro, imma drop the cum dump in 30 minutes, i'll be back alright?