[Eric in the Ozarks]

Actually, the first two names that came to mind were Manitowoc and Oconomowoc.

[left that other site]

There is a lake in Massachusetts called Lake Chargoggaggoggmanchaugagoggchaubunagungamaug. The name is a Native American word that means ‘You fish on your side, I’ll fish on my side, nobody fish in the middle.’

I know this is a true fact because I had a gig there once.