In fact, here is what Urban Dictionary says: Michigan slang term that describes a small convenience store that sells soda, beer, liquor, snacks such as potato chips and hot dogs, and some household goods such as plastic cups and paper plates. So there you go. A "party store" can be a "pony keg" and vice versa.

LCBO. The LCBO is Ontario's answer to Pennsylvania's State Stores. A place to buy booze at retail since there aren't too many other places you can do it out here.