Definitions by Randy the Boobster

hoisoiboi 

A person playing the scientifically correct world war 2 simulator "Hearts of Iron 4." It's also used frequently by hoi 4 players when they want to address a fellow player mockingly.

Have you seen Drew Durnils last hoi 4 video? He's such a hoisoiboi.

hoisoiboi by Randy the Boobster December 15, 2019