a loser jerk off that thinks they are cooler than they actually are. they think they are the focus of everyone's attention or are better than everyone when in fact they are not. they try too hard, get smuts with diseases, have diseases, and are used like tools
the entire frat of pi lam at Widener University in Chester, PA
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.
That guy is totally a toolbag. He looks just like he got back from a Kid Rock concert.