Mine has had some pretty dumb arguments for names He says names sound like fat girl names, and every girl named Audrey supposedly has a big head (actual cranium size). He's told me that he once knew a girl at some point years ago that kind of seemed like she might be skanky, so it's automatically a whore name.
And I've gone through about 100 different names that have been "stripper names", and they weren't the usual stripper names!
Basically, I think he just plain doesn't like the name, and thinks if he doesn't have a "reason", I won't accept his veto or something.