One of the four houses at Hogwarts, though nobody really knows exactly what they are. Yet most of them are believed to be good finders.
Dumbledore: Basically, I've been putting anybody who looks like a good guy into Gryffindor. Anybody who looks like a bad guy into Slytherin. And the other two can just go wherever they want. I don't care
Cedric (stands up): Hufflepuffs are particually good finders!
Dumbledore: What the hell is a Hufflepuff?