I’ve never use it on a guy. But it mean to attack your ego. A guy that can’t pull chick/s typically means his lame. Just what people think. I knew a guy hot AF that was a virgin he was waiting until marriage. People have their reasons.
also could mean your mentality could be of an I-ncel misogynistic, hella traditional, angry at women etc.
Traditional shouldn't be with the rest of that, since they can get women.