A mikkebak is a Fortnite fan that is overly toxic towards non Fortnite fans and has no sense of humor.
Also, some of them may be pedophiles.
A sensible person with a lazy, but decent sense of humor: Fortnite bad(a joke)
Mikkebak: Don’t knock it ‘till you tried it. Also, bad joke. Two words isn’t much of a joke. An example of a proper joke is: Knock Knock. Who’s there? Orange. Orange who? Orange you glad I didn’t downvote?
Person A: Who's this "Mikkebak" guy I keep seeing around here?
Person B: A pedophile, plain and simple.