A screwball can also be an expression meaning an eccentric or "crazy" person. Surfings in the 1960's adopted a goofy and comedic screwball attitude. Antics and clowning were an important part of their surfing lifestyle. Without counsciour choice this is the era that we have adopted and feel at home in. We have brought it back in our own way.
Others who share a similar attitude are: http://www.turkeyusa.com/