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n: clear plastic cover that is usually hinged and spring-loaded that prevents inadvertant (or slows unauthorized)operation of an important switch. Sometimes improvised with a piece of tape. (Frobguards are forbidden on emergency stops on industrial equipment by OSHA.)
That tourist came through and flipped the power switch, and we lost a day's work! We gotta get a frobguard on that thing.

Thank God I heard the frobguard hinge squeek when Johnny lifted it! He'd have taken down the whole network if I hadn't stopped him. Why do we let that scrag bring her kid to work anyway?
by danw December 22, 2003
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