A worthy or "stand-up" person, usually amongst the hippie culture, a "headie" or a "heady" individual is one who is about morals and family. Initially a term used for quality cannabis salesman, but with the decriminalization/medicinal legislation of marijuana, a "headie" or a "heady kid" can describe any person of good moral standing. Derived from the term "headies" used for flavorful, medical, high grade marijuana genetics, which a "heady" person will usually share/smoke with his/her family and friends. The word also has roots in the label of "DeadHead," a nomer which has been associated with Grateful Dead fans. It's good to be Heady!
"It's all good, brother. This guy's a Headie" (N.)
"Kid's got morals. Headie to say the least!" (ADJ)
Talk to that Headie over there. He'll take good care of you."