Chocobi (チョコビ) is a fictional chocolate star-shape snack brand favored by Shinnosuke. It is a famous brand in real-life and continues to do so via the anime's popularity.
Later it is important in Crayon Shin-chan: Action Mask vs. Leotard Devil. He chooses the Chocobi with the golden card in it purposely by Action Mask. The dinosaur is called Waniyama-san.
In the series
Chocolate ice cream Chocobi
"Nohara Shinnosuke (Me and the Space Princess
version); the duo that fights over pudding. Shinnosuke says he doesn't need a sister, but..."