kaddlehopper
A moonbooted idiot who thinks everything people say is true, even when they're lying through their teeth and stinking up the room.
My cousin is a kaddlehopper. He believed the guy who sold him a goat for $200 and it turned out to be a goat that poops glitter.
My boss is a kaddlehopper. He said he'd give me a raise, so I quit my job and now I'm broke.
My neighbor is a kaddlehopper. He thought the mailman was giving him a free pizza every day, and now he's eating pizza at 3 a. m.