I was watching a re-run episode of CSI the other day, they had picked up this kid who had a camara attached to his shoe so that he was able to get video of girls under their skirts......anyway, on the show, the kid said "i don't do toilets, fat chicks, blue viens or anything like that, just voyeur stuff". What is "blue vien"?? Maybe I heard it wrong, but I can't figure out what it means. 

