Riverrunner 

A word to describe someone that plays LoL and is overweight. A riverrunner can be identified by their traits. Such as
-Eating a disproportionate of unhealthy food
-Plays the garbage game LoL(League Of Legends)
-Is admin on a discord server
-and has an anime pfp

Some rando gray name: "hey whos that?"
Some rando discord mod: "oh he's a riverrunner"

Riverrunner by Commander Ulgrin March 29, 2021

Mississippi River Runner

An act during a FMF threesome in which a male takes a shit down the girl's back so it runs down into the other girl's awaiting mouth.

I had this threesome last night and i gave the girls a Mississippi River Runner.

Mississippi River Runner by Westconenct January 26, 2011

river runner 

1. slaves escaping through the mississippi river 2. a racial slur for a black person

did i just see 2 dirty river runners

river runner by dirk dinkum February 25, 2020