, ▁especially ▁if ▁the ▁fault ▁can ▁then ▁be ▁handed ▁over ▁to ▁the ▁next ▁shift ▁for ▁rect ification . ▁ ▁J ▁▁ ▁J AF AD ▁( ab bre viation ) ▁- ▁Just ▁Another ▁F uck ing ▁Air ▁Def ence ▁in ▁de ference ▁to ▁L ▁Te ch / M ech ▁AD ▁Rad ar ▁Systems ▁tr ades men . ▁J ank ers ▁- ▁P un ishment ▁after ▁being ▁put ▁on ▁a ▁charge ▁for ▁a ▁service ▁viol ation . ▁J elly ▁T ots ▁- ▁Junior ▁techn icians . ▁J EN GO ▁- ▁Junior ▁Engineering ▁Officer ▁on ▁a ▁squad ron . ▁J ink ▁- ▁Sh arp ▁ev as ive ▁man oe u ver . ▁J ipp o ▁- ▁A ▁grav y ▁or ▁ste w ▁also ▁called ▁J ol lop . ▁J ML C ▁( ab bre viation ) ▁- ▁Junior ▁Management ▁and ▁Le ad ership ▁Cour se . ▁J N CO ▁( ab bre viation ) ▁- ▁Junior ▁Non - Comm ission ed ▁Officer . ▁ ▁A ▁corpor al ▁( act ing ▁or ▁substant ive ). ▁ ▁Additionally , ▁since ▁ 2 0 1 0 ▁includes ▁the ▁rank ▁of ▁lance ▁corpor al ▁( RA F ▁Regiment ▁G unn ers ▁only ). ▁J ock ▁Pie ▁- ▁A ▁popular ▁gre asy ▁sav our y ▁pie ▁( M mm !) ▁purchased ▁from ▁a ▁N AA FI ▁W agon . ▁Usually ▁only ▁available ▁at ▁Kin loss , ▁Los si em outh , ▁Le uch ars ▁and ▁other ▁Scottish ▁Units . ▁J ockey ▁- ▁Fast ▁Jet ▁pilot , ▁also ▁called ▁a ▁thro tt