<n> Slang;

1) When a female (or a man, respectively) is repeatedly showered with a large amount of cum from several other males.

2) To take a bath in cum.

See also: Bukkake

The worst level of humanity you can think of. If you are classified as a "cumbath," then don't expect to find a high paying job, an attractive wife, or any amount of happiness in your life. Your only hope is to be covered in the wonderful biological man-substance known as "cum." You'll be poor and probably sell pencils in a little tin cup, but you will be always warm due to the eternal baths of creamy ball butter that is expunged upon your corpulence. Enjoy it, you douchebag, or should I say, "cumbath."

to bathe in a bath of cum