I have also, maybe especially from straight women.

I do think there's a little bit of a difference between "genitalia are kind of funny" and "genitalia are gross and icky," though. I mean, one can shade into the other, but I think people tend to react much more badly to the latter, unless "funny" is said in the way that means "gross." "Funny" is really context-dependent, but I can't think of many contexts where someone would be okay with being told their body is disgusting (aside from consensual kink, etc.).