I never got why that whole femboy Hooters thing got to be such a meme. It's just ... not funny. And femboys tend to be quite slender - it renders the visual pun inherent in the name moot.
Himbo Hooters should've been the ticket. It's clearly the superior concept. Femboys have similar appeal to women, thus femboy Hooters is somewhat redundant - and limiting. It'd only attract a very small portion of the same demographic that goes to regular Hooters. Himbo Hooters, beyond muscly man pecs providing a nice analogue to titty and thus keeping the name relevant, has a completely different demographic and would thus be a much better business expansion, and would be a good way for the company to score social justice brownie points by equalizing its objectification.