Lotsa Luck Joy Juice is a plot device meant for The 13 Ghosts of Scooby-Doo and its sequel.
Description[]
Lotsa Luck Joy Juice is a potion and serum made by Flim Flam. While marketing it as a questionable miracle cure, Flim Flam actually broke ground by using it twice to save the team from danger, resulting in him joining them in attempt to capture 13 Ghosts from Chest of Demons.
Flim Flam made the juice in order to rip off others. However, it worked in his favor because it was found to be the perfect antidote for those spellbound as werewolves. After he healed the local denizens as well as Daphne, he secretly located her plane The Flying Mystery Machine, which was wrecked and out of fuel. Coming into contact with the juice resulted in the plane being restored back to normal in appearance, but now has the ability to crash through walls unfazed. Lotsa Luck Joy Juice also proved to be the perfect engine fuel, giving it highly efficient turbo speeds.
It is unclear what it is made of, but is hardly scarce since Flim Flam makes caseloads of it in record breaking time.