Not talking midgets here, but Kanjiklub was referenced by Han as "Little freaks".
Then the leader figure is diminutive (I don't have him, just know he is). They're tough to really tell in the show they're in, but are they like pygmy type guys or what?
It was one of the funnier lines in the movie IMO and I kind of am curious about them now. They just look like Asian guys from what I recall, but are they really tiny humans or what?