I'm not entirely sure about this but I'm pretty sure I remember "yoink" from an old episode of Scooby Doo, or some other old Hanna Barbara show before I heard it on the Simpsons, but The Simpsons kinda made it a thing.
Shaggy would say "Yoinks!" as an exclamation of fear, instead of the go-to thing to say when you take something from someone.
Also, way back in the day, the Simpsons had a magazine, and in one issue they had invented a card game called "Yoink" where you repeatedly take cards from other players, saying "Yoink" every time you take a card.