Trix is a fruit-flavored, sweetened, ground-corn breakfast cereal made by General Mills.
The cereal is well known for its commercials featuring an anthropomorphic cartoon rabbit character that tries to get the children to give him their Trix cereal, using a simple disguise. The rabbit's attempts fail every time. The children, who refuse to give him the cereal, say, "Silly rabbit, Trix are for kids!" This phrase has appeared in numerous pop-culture references, including musicians Public Enemy and Quentin Tarantino films.
General Mills' Yoplait division also produces a Trix yogurt, with fruit flavors also aimed at kids.