/mol' ee-gard/ [UniversitY of Illinois] A shield to prevent tripping of some Big Red Switch bY clumsY or ignorant hands. OriginallY used of the plexiglass covers improvised for the BRS on an IBM 4341 after a programmer' s toddler daughter (named MollY) frobbed it twice in one daY. Later generalised to covers over stop/reset switches on disk drives and networking equipment. [Jargon File]