It's funny but I spent around 10 years as a radio/radar tech variously on Jags, Vulcans and Tornados and in all that time I don't think I ever heard any aircrew refer to us aircraft techs (or other ground trades, for that matter) as "blunties". Is this a fairly recently introduced term or am I suffering selective memory loss? BTW, by recently I mean introduced after 1987 (God, was it really that long ago I left?
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Re. the remark above somewhere about each group liking to lord it over some other group - yes, we were just as guilty in disparagingly referring to any non-aircraft ground trades as "shinies" - something to do with the effect on the seat of their pants of too long spent sitting at a desk. Oh yes, and the airframes and engines techs (the "real" aircraft engineers) referred to us as "fairies" (and probably still do).