It was brought to my attention he is kinda (fanon-ly?) considered by many to be a lady? I dunno I just can't see it though! I tried! I even drew a lady version afterward, but his body language totally doesn't read as a girl to me. I mean... aside from the fact they're, y'know.. robots.
Yeah, P-Body never came off as a girl bot to me. They just kind of seem like two guy bots. Considering both their voices seem more guy like, what with all the turrets and GLADos clearly being more feminine.