fortnite

Goofiest game known to mankind, alienkind, basically anything and anyone
These are the most common reasons why someone would play this

1. You are an OG. You were there from the start; everyone can respect that. This is the only acceptable reason to play fortnite
2. You are between the ages of 4 and 8 and are still learning to differentiate between right and wrong
3. You are a SIMP, and play only for the characters

Actual Definition now
Fortnite is an online 3rd-person shooter made by Epic Games. The concept is that you jump off a flying bus, get guns and loot, and then proceed to kill everyone so you can get a Victory Royale.

Person A, "You did you see that guy playing fortnite?"
Person B, "Yeah, they are so cringe."