A person who builds or modifies already prebuilt things high on meth, thinking that their make-shift modification has improved the object and convinced they are a jack of all trades who can "fix" almost anything. Kind of like a flailed out MacGyver or an on-one Mike Holmes. Often times than not, the jib technician that wants to learn the anatomy of, for example, a laptop, the tech will flail it apart and put it back together with some screws or pieces of the laptop missing thinking that it will be fine.
Ron is a red seal jib technician.
Messing around while high on Crystal Meth.
The house became a disaster, from Dan & Jessica mething around.