A noun meaning accumulated filth, grime, or other nastiness.
Behind their stove lay the nastiest puddle of miznak anyone had ever set eyes on. It was the lair of miznak, nay, the birthplace of miznak.
An adjective used to describe accumulated filth and/or grime and/or tasteless decor; excessively nasty.
You should've seen their new place before they moved in. Totally miznak. They were sweeping Legos and dead crickets out of the carpet for hours.