To bodge is to improvise in the repairing or construction of material objects, often employing workmanship or materials of a less than satisfactory standard.
A British slang term, the Oxford English Dictionary links it to botch , in the sense of repairing something badly. Its most common use is probably for home repairs or otherwise indifferently performed "do it yourself" projects.
Originally a Bodger was a polelathe worker, who made wooden goods from green wood, such as chair legs or candlesticks. These handmade chair legs were not of a lesser standard, and would be sold on to furniture factories for assembly. This craft industry still exists, although not to service the mass production furniture industry.