Beetlejuice - Season 1 Episode 17 Prince of the Neitherworld
Overview: Beetlejuice (disguised as Betty Juice), Lydia, Bertha and Prudence go camping in the Neitherwoods. Bertha and Prudence have never been camping and Beetlejuice is sure that they're just a couple of lost cases-until Bertha and Prudence convince him otherwise.