A noun usually described as toxic, cancerous and retarded.
It is also the name of a game which can be described in the exact same way.
When one plays the game, he/she
will feel intense pain and
will quickly lose all of their braincells, it is addictive much like how smashing your head against the wall is.
Those who go within 30,000
miles of a "Fortniter" (sometimes known as a "clinically insane neanderthal who believes the earth is a doughnut" or a "stupid, toxic, radioactive monster from the burning pits of hell")
will get poisoned and
will either be forced to suffer playing fortnite forever or be forced to hate on the pathetic excuse for a game.