
This is the funny thing in any pastime job etc you get things abbreviated and you very quickly forget that other people won't have a clue what it all means, when it seems so obvious to those involved.
When I first got into showing dogs I had terrible trouble with the abbreviations for the sexes.
I used to show Rabbits and 'B' was short for Buck (male and 'D' short for Doe (female), and in canines it is 'B' for Bitch (female) and 'D' for Dog (male).
Fortunately a lot of the class abbreviations were similar.