A marijuana cigarette (joint) of particularly large diameter and length such that it resembles the leg of a swine.
I tell you Charles, by the time I had finished reviewing several year's worth of quarterly payroll tax reports with those IRS agents I had to go home and fire up a pig leg.
Any kind of hand rolled cigarette that is inconsistent in shape; due to clumsy inexperienced hands. Typically characterized as being fatter on one end or the other or even in the center.
"Look at the goofy ass pig leg hanging from that dude's mouth."
"No shit, what a bumblefuck!"