For a long time it was assumed that it was some kind of fruit, or at least a nonsense
word being used to represent a fruit, because that was the context is was used in in the book Charlie and the Chocolate Factory
("The snozzberries taste like snozzberries!"). Then, in 1979, people found out what it really meant when the author of Charlie and the Chocolate Factory wrote an adult novel that used the word in its proper context. Turns out, it's a penis.