In short, it's another phrase for the act of spitting hot sludge from ones sphincter and further leaving a crust along the outer edge of ones rim.
More specifically, after eating unusually spicy cuisine, a very hot slush of fecal juice makes its way through the large intestine (toaster) and amalgamates with a solid preheated log to form a mushy substance (mud). This mud is then baked for as long as the sphincter can handle.
At the point in which one can no longer clinch, the mud spits and/or spews from the turd cutter leaving behind a crust along the rim. This is when you know that you've cooked the mud long and hot enough for a toasted crust to form.
This causes anal leakage, or what many people know as mud butt.
Whew, this curry is going right through me. It's definitely going to lead to a mud toaster.
Something's brewing within me, and it feels like it's going to be a mud toaster.
A type of egg often laid accidentally
"Piss, I need to go... think I've laid a Mud Egg"
Coming across more crap than gold when searching for something; An unusually bad streak of luck
Fred: How's the search for tunes on Beatport going?
Alfred: Not good mate, I've been striking mud too much. Too many shit tunes out there and a lot of misleading samples.
What comes out of your ass after a night of eating a couple dozen 911 wings and having a few pitchers of draft beer.
I need to shove some I cubes up my burnt asshole after all that flaming mud.
An attempt to fart, but instead projectile shitting yourself a little
Jackie thought she was safe, but she soon realized that little toot in the ladies room was a mud squirt. Hope it washes out of that dress.
Referring to take a massive shit
Hey sorry for the late reply man I was just unleashing a Mud Demon
The male version of a mud cricket. Wears designer jeans and fancy boots and drives a jacked up truck pretending to be a country cowboy. Fucks any mud cricket whore in sight with short shorts and boots on. Has never seen a farm or driven a tractor but thinks he's country because he listens to Jelly Roll and Sam Hunt.
Look at all them Mud Roaches and their lifted trucks tailgating at the Florida Georgia Line concert.