BOB - Bird or Bloke, AKA, Manwaaf, WFW (Wee Fat Waaf) Found in the Armourer trade, SEF, Supply (in particular R&D and Fwd Del) Easily spotted by the short back and sides, blokes trousers (in and out of uniform) Tattoos on the knuckles and a deeper voice than Barry White.
The opposite to:
PG - Probably Gay, usually light on the loafers, nice fingernails has lots of female "friends", doesn't swear much, tend's to avoid the crewroom, drives a suzuki santana and call it his little darling.