Subset of "hillbilly", a lower class of southern redneck often described as "cracked out" or "on the meth". Usually characterized by a lack of teeth and healthy gums (meth mouth), unhealthy body weight, and a supernatural ability to project paranoia via an unstoppable barrage of verbal diarrhea.
I saw Billy Bobthe other day. Ever since he hooked up with Truck Stop Rhonda, he's turned into a real Methbilly. All I'm sayin' is hide your cash if that methbilly comes to visit.
Methellaneous is lots of clusterfuck in a meth users yard. Also could pertain to other areas besides the yard such as counter top areas and in their pockets. And many more.
Holy shit bro bro those twackstars got more methellaneous items in there camper than the Beverlyhillbillies truck when they were moving!!!