Our group encountered a gentleman whose vocabulary apparently consists of only two words: praise and Zandalus.
Replace some words, loop the first 10ish seconds of this song and whaddya know! It's the official Praise Man theme song.
♫Praise, praise, Zandalus♫
Andrew's GM here. My version of Juglan Rivercane had a two word vocabulary. The party became fairly passionate discussing among themselves whether he'd be worth using as a guide. On the shared Google Doc I made to track the NPCs, he has three times as many lines devoted to as anyone else, so apparently they liked him.