Starburst is the brand name of a box-shaped, fruit-flavored soft taffy candy manufactured by The Wrigley Company as a subsidiary of Mars, Incorporated.
On finding a water slide without a slide at Super Splash City in "Dearly Deported", Peter is given a 'Starburst' candy, but after an initial sensation of riding a fruit wave, he realizes that the attendant had given him acid.
While dividing up their food supply in "Bend or Blockbuster", Peter keeps all of the red Starburst and Spree candies to himself.