riverboat

A MPV (multi purpose vehicle) that (unlike most of them) can actually cross muddy fields, ford every stream, climb every mountain etc.

Darrin's new Probe is a real riverboat but it has a shitty gearbox

by poodlewrestler August 30, 2005

Mississippi Riverboat

Akin to a Cleveland Steamer, the Mississippi Riverboat is accomplished by first getting the runs, then taking a liquid shit on the neck and chest of a woman, at which point the shit runs down her like a wide, muddy river

I had enchiladas for lunch, which turned the Cleveland Steamer I laid on her into a Mississippi Riverboat

by Milfadd July 26, 2011

river butt

When you have diarehha to the point its shooting out your butt

Im sick and i have mass river butt

by Fodrizzle01 May 31, 2016

Chinese Riverboat

When a man is penetrating that sweet poon poon, he fists the women right in the mothafucking ass and finds where his dick is in the vagina and starts to rub his dick from the anal canal until he cums in a furious rage.

Jerry got shit all over his hand after doing a Chinese Riverboat in a well mannered prostitute.

by The Awesome Putin December 8, 2015