Insult. Said to mean something that is really ment to be said but mumbled to a person you are showing anger at caused by any uncomfortable situation.

(Pronounced misch ne keh)
Darius: Mads, what's wrong with you?
Mads: I'm fine.
Darius: Don't lie to me.
Mads: Maej niskaej!
Darius: What the fuck did you just said? Is this a new mumble language of yours?
Mads: Nevermind, Darius.
by EPLJX March 9, 2010
Get the maej niskaej mug.