when i was first introduced to the sport, it was referred to me as "frolf" i just thought that was what it was called. it seemed fitting: golf with a frisbee...frolf. when my friends and i are going to play we say frolf, but when i describe the sport to someone that's never played i say frisbee golf, it's something that i think most people would understand easier; i tell them that instead of a ball and a hole you have a disc and a basket. but when i discuss it with an avid player i'll say disc golf, because i know that frolf is a taboo term, that most disc golfers feel that it makes the game sound like it's just for kids.
i'm from the buffalo area, and play "the ridge" so maybe it is just a regional thing. but the more i play and talk about the sport with people the more i convince to go out and play, because it's a lot of fun, everyone you meet on the course is very friendly, and it's relatively easy to pick up (at least the basics, i'm still workin on my annie). i've found some people actually remember back before there were pins, and you just threw at a basket on a tree. so the sport has come along way since the 1970's no matter what you call it.