rootbeerboy 

A douchebag, jackass, or generally someone who wears brown stained wifebeaters. These people have shitty attitudes, so they are very easy to spot.

Joe is such a rootbeerboy. You can tell by his shitty attitude and his brown stained wifebeater.

rootbeerboy by TheWhipping October 2, 2007

Rootbeerio's 

When you get a bowel of Cheerios and put rootbeer into it.

Guy 1: Woah dude did you put Cheerios into your bowel with root beer?!
Guy 2: Yeah man, you should try it! Its called rootbeerio's!

Rootbeerio's by Sidewhore January 30, 2018

rootbeerboi4 

An awesome tiktoker who has an object show obsession and has interacted with lots of people in the osc

Person 1: is that rootbeerboi4?
Person 2: how do you know? They haven’t showed their face!

rootbeerboi4 by Superhawkes November 13, 2021