my mom is from wisconsin and I grew up in Northern IL so it could very well be a midwestern saying. :) another one of her famous "eruptions" was, when something was wrong "WHAT IN SAM HILL???" I'm like "who is sam hill?" :) or my dad's was he'd tell me I had to do something and I had a choice of "one of the two". and my friend who I worked with, she was older than I, she referred to her high school years as "many moons ago". :)