Noun: A ratchet tool for tightening and then cutting the surplus off nylon cable ties or 'straps' without leaving a sharp point protruding.
Familiar due to sounding a bit like 'appendectomy'. Phrase in use by employees of GEC in UK in 1980s.
Shouted the length of a telephone exchange or similar electrical engineering environment "Who's got my strapadicktome? I'll have to trim these with side cutters."