An individual whose ineptitude, idiocy, and lack of personal hygiene sets them far above and beyond a mere "tool"...only a full "bag of tools" is sufficient to describe their personal defects.
Joe : My god Cecil I have just seen a sexy woman doing squats over there Cecil : where .....wow she is down low on those squats isn't she joe .....so low her snatch has opened up like a plumbers toolbag .
joe : yeah she has an amazing plumbers toolbag
A crossbreed between a tool and a douchebag. A toolbag would like the Black Eyed Peas, like a tool would, and Nickleback, like a douchebag would. They would also like Kid Rock, like both a tool and a douchebag would. Toolbag can also refer to someone who is beyond being just a tool.