The feeling of having too much of your own cum in your body due to the lack of ejaculation for a prolonged period of time (ie more than 1 day).
The natural result of the continued production of sperm and related fluids that build up in the body if not frequently released.
Yeah it was great hanging out with a bunch of cum toxic dudes this week...
Look here... I've got a double-loaded weapon and I'm not afraid to use it... I'm cum toxic!
I've got cum toxins coming out of my pores!