mostool 

One who is drunk or high. A sh*thead to some or simply crap/garbage.

You act like such a mostool sometimes.
You'll be a mostool when you grow up, because you live unhealthily.

mostool by The Mostallion March 26, 2009

mustool 

A very smart person. This is used to show a very smart person's ability.

Person 1: Hi mustool

Person 2: aww thanks

mustool by Ma3fneh July 28, 2020

Mostcoolkid78 

A very cool kid

WOW MOSTCOOLKID78 IS SO COOL

Mostcoolkid78 by Mostcoolkid78 July 14, 2021

Mostiolp 

Mostiolp is the name of a group of bad guys in the "Preston Swordomaster" series

Out of the corner of his eye he sees, The Mostiolp!

Mostiolp by Yoyosrop May 2, 2022