Rectal Vomit

The act of profusely blowing diarrhea out of one's asshole. This may be due to many things such as being sick or hung over.

Rectal Vomit is basically projectile diarrhea. Not pretty.

Ex1: After a long, hard night of rough anal sex Jackie had to run to the toilet and blow out some rectal vomit.

Ex2: Sam drank so much beer and ate so much smoked sausage last night that when he woke up this morning he blew rectal vomit all over his new bed sheets.

Rectal Vomiting

The process of defecating that is subject to a large volume being passed in waves, during one sitting.

Guy 1: Dude, why were you in the bathroom for so long.

Guy 2: Man, that was some bad Chinese food – rectal vomiting was not my idea on spending the last hour.