Deema's Opposite Saloon is the Shop segment from the episode: The Cowgirl Parade!
Goby goes to get something to eat at the Saloon. Deema introduces her saloon as "The Opposite Saloon". She explains what Opposites are and Goby asks for a SMALL bowl of spaghetti and gets a teensy-tiny bowl of spaghetti. He then points out its too small, the opposite of SMALL, is BIG. So he then asks for the BIG bowl of spaghetti and happily goes on to eat it, after asking for a fork and asking for a big fork. But realizing its too big, he asks for a small fork instead. Deema then realizes she forgot the meatball and sends it on in! It rolls it and is revealed to be huge!