snirt (n.), Upper Midwest
A gem of a portmanteau, this word means exactly what it sounds like: a mixture of windblown snow and dirt. Also, for your linguistic pleasure, try out the adjective version: snirty.
jabble (v.), Virginia
You know when you’re standing at your front door rifling through your purse for fifteen minutes because you can’t find your keys again? That’s because all the stuff in your purse got all jabbled up. This fantastic little word means “to shake up or mix,” but it can also be used less literally, meaning “to confuse or to befuddle.”
Source (do take a look, some other fun words on this list): 19 Regional words all Americans should adopt immediately, from Mental Floss