Actually, it was a West Coast thing, but the comic books were available nationwide, originally in "head shops" and places like that. They were part of the whole "underground comics" scene: Zap, Mr. Natural, Wonder Wart Hog, and stuff like that. Started in the 1960's and some of it is still around today today. Much of dealt with drugs, sex and violence (sometimes all in the same comic book!), and some of it was very political, as well. A lot of the old comics are considered counter-culture classics and are still being reprinted today, along with new offerings.
I guess the best way of describing the Freak Brothers would be to say they were like a cross between Cheech & Chong and The Three Stooges (sorta). My kinda guys.
Wikipedia - Freak BrothersFreaknet (tribute site)
Rip Off Press (underground comics publishers)
Memories, memories...(sigh)
Signor V.
