just curious as sometimes i see them and wonder that very thing.mine comes from when i was in high school me and my best friend were on a hike one weekend and were bs-ing and coming up with acronyms for things so we could talk code like TODB, thats one dumb bitch, ect.. so and im stating this in advance that its very juvenile but bpm stands for big pink meat(a dudes junk) anyway im bpm1 and my best friend is bpm2.stupid i know but something that reminds me of the good old days, so what does yours mean?