Doozie (also doozy): Something that is extraordinary. Often used in the context of troublesome, difficult or problematic, but can be used positively as well.
As a kid I always loved going to Great American Cookie Company and getting a Double Doozie cookie. Nothing was better than a generous helping of frosting sandwiched between two freshly baked cookies.
Now one could infer that Great American Cookie Company coined the name "Double Doozie" because it is in fact, wonderful and extraordinary, but I beg to disagree. I like to think that this cookie originated after someone was having a horrendous, albeit "doozie" of a day. One of those days when you feel like you just can't... possibly... make... one... more... decision.
Do I want a cookie? Yes. Do I want cake? Yes. Do I want an entire vat of icing? Yes. Indulgence kicks in and before you know it, you're sitting with an empty pint of ice cream, spoon-in-hand, wondering why you feel left unsatisfied. Yes, one of those kinds of days.