B B's is know as Blue balls. When you are about to nut but you are not finished.
A girl is giving you a blowjob/handjob and then the doorbell rings you are left without finishing your load. You now have Blue Balls commonly referred as B B's.
Bloody Bogies. When you pick your nose and you pull out a red one.
when you pick your nose and you pull out a bogie with blood on it (and i mean a real slimey squiggy bogie all bloody) keep it on your finger but dont show anyone. Then, go up to your mate and say "ive got B B's" he/she will reply in confusement "what are B B's?" you then shove your finger with the bloddy bogie on it right infront their face and say "Bloody Bogies" (in a loud, childish and querky manner) then wait for the responce.