The definition of Fortnite Kid is a person or thing that uses Fortnite pfps talks trash about other games plays Fortnite 24/7 and is generally cringe, they also don't shower very often.
Words used by Fortnite Kids: Trash, Dogwater, Cracked, Minis, Bigpot, ETC
"My mom is calling me to take a shower."
" Yo Sam, look at that Fortnite kid he's sooooooo cringe and he's smelly."