The "ee" is pronounced as a long "i," as in Cricket. Used in Adair County, Missouri (frequently & for as far back as anyone can remember) to describe low life poor white trash. Referencing images of old trailers down by the creek. Even worse is "Shit Creekers," who are so dumb they shit in the same creek they pull drinking water out of. When you are from Adair County you hear these terms so often, you don't realize that people everywhere don't know what you are talking about.
"He comes from a long line of shit creekers, what do you expect?" "Some dumb ass creeker shot someone at the Spike (bar) last night."