When a man or woman wakes their boyfriend or shemale partner up by taking a wet sloppydump all over their dick.
Example: Craig was tired of his realtionship going no where with his boyfriend so one day he took it upon himself to wake him by making a sloppy mess of his gentalia by unloading his wet, sloppy, hot, and spicy chili pile all over his cock. Craig's Chili masked his cock with a stinky, musky, wretched, arousing, scent. Then Craig's boyfriend Matt awoke and said what the fuck Craig?! What is it Matt aren't you hungry for "Chili Dogs"? Well... I do like me some good ol' fashionable "Chili Dogging" Matt exclaimed.
When you kick down the restroom door on an unsuspecting person who is taking a shit, grab them by the arm and pull them off the seat and proceed to rail them in the ass with poop and all
"Paul is going muddogging at the public restrooms tonight on some poor bastard"