This term, generally associated with programming or construction of some sort, means to do whatever you gotta do to simply make it work. When you do something on a MTBW basis, you generally have no regard for efficiancy, safety, error correction, or anything other than the most basic instance of it performing the task it was designed to do.
My program is slow and inefficiant because I made it on a MTBW basis.
one who is native to or has lived primarily within the political boundaries of the Republic of Texas (a.k.a. State of Texas) and has subsequently emigrated to another state or country
It's so nice to meet fellow Texpats up here! Northwesterners can be as chilly as their weather.