Mudbath is a phenomenon when one shits and pisses their pants at the same time. It was a term coined by TJ Jamieson and Jeffrey Young on Jeffrey's birthday. Since then, this term has been applied to many scenarios.
"Dude I drank so much beer I can't wait to mudbath all over myself tomorrow morning"
vaginal sex with a woman on her period
When she wants it, she wants it. Bring a raincoat to minimize post-mudbath scrubbing.