A string of two or more guys following around an attractive female, hoping that their overly eager attitude will get them laid.
The toolbelt is usually used by her to make her seem more attractive, as ploy to impress the guy she is actually interested in.
"So I see Erica brought five dudes to the party. I'm sorry man."
"Ah, don't worry about it, she just brought her toolbelt to try and make me jealous!"
1. An person characterized as being a self-centered, stubborn, close-minded asshole who treats other with no respect, especially of the opposite sex.
2. Thomas Bell
Tom is such a toolbelt.