Slight tangent, I used to work with a bloke who was ex-REME, and we used to swap stories and moans all the time. I started greeting him in the morning as "Grunt" and he would reply "Crab". One morning he called me "Fairy" as he'd found out that aircraft avionics techs were always refered to as Fairies, and promptly got a talking to by the boss! We both had to explain to the boss that no, it wasn't homophobic, discriminatory etc.
It's just banter and I am proud to have been a fairy, even if I have to explain it to people.