I was talking to a female friend and young Arnold Schwarzenegger came up on conversation. I pulled up a picture of him and spent a long time looking at it. Then said "I am trying to decide if he is attractive.
I know for me women who are fit and toned, attractive. Once a woman is muscular, attractive falls off a cliff. Probably because they start looking like a man.
The Arnold picture
Edit yes I am a guy
What is fbb? Flexing big bisons?
Hazarding a guess with context… Female bodybuilders
You got ger those bisons to pose.
I think he was referring to female body builders. Though there are some other ways you could interpret it. Read at your own risk
https://www.urbandictionary.com/define.php?term=Fbb