The refreshing splash of water that cools down your butt cheeks when poop hits the surface of toilet water, making the toilet paper impossible to use.
Jhonny got shmisted because his small intestine absorbed too much water, making his feces heavy.
by BorderSpice February 17, 2011
A fine mist of faeces that is emitted from the anus upon emission of gas (flatuance), similar to, but not the same as a Shart.
Dan: Dude I think I just shmist in my pants.
by gorilla in the shmist April 01, 2009