Wumpa Whip

Wumpa Whip, also known as Wumpa Juice, is a wumpa fruit-based drink served in Von Clutch's MotorWorld. Willie Wumpa Cheeks is the source of all Wumpa Whip, as well as the brand's mascot. It is sold as an energy drink, is apparently high in sugar content, and causes its drinkers to enter a hyperactive state. Wumpa Whip appears to be Crash's favorite drink, as he is often seen consuming it throughout Crash Tag Team Racing.

Crash Tag Team Racing
In Crash Tag Team Racing, Wumpa Whip serves to double the amount of Wumpa Coins Crash collects from broken crates for a short time. It is also a vital clue that leads Crash and friends to finding the thief of Von Clutch's Black Heart Power Gem. Due to Crash's fondness for the drink, they at first suspect him of stealing the gem, but their obliviousness causes the true culprit, Willie Wumpa Cheeks, to confess out of frustration and flee. Once Crash catches up to him in Astro Land, Cortex blasts Willie with a laser wave that disintegrates him into a puddle of Wumpa Whip.

Crash of the Titans
In the DS version of Crash of the Titans, Wumpa Whip replenishes Crash's health when collected.

Crash Team Racing Nitro-Fueled
Ads for Wumpa Whip appear in Tiny Arena and Parking Lot. Pasadena O'Possum carries a bottle of Wumpa Whip with her on the podium as part of her winning and losing animations.

Trivia

 * Willie Wumpa Cheeks is the sole creator of Wumpa Whip, which he extracts from his body with his valve-like nose. How it is later obtained in Crash of the Titans is unknown.
 * It has been suggested that Crash is the only consumer of Wumpa Whip, though this is likely an exaggeration.
 * In the cutscene "To The Rocket!" Von Clutch asks "Who drinks Wumpa Whip anyway?", implying that it's probably not safe to drink.
 * On the other hand, it could mean that it's not a very popular beverage, as many of the other characters find it disgusting.