What is "sharlie"

Sharlie (Slimy Slim, The Twilight Dragon of Payette Lake) is the name given to a sea serpent much like the Loch Ness Monster that is believed by some to live in the deep alpine waters of Payette Lake near McCall, Idaho.

The first reference to the sea serpent may be the belief of Native Americans, predating western settlement of the area, that an evil spirit dwelled in the lake.