I made Kid Cat's "ladybro" cuz he called me that once and I thought it was hilarious. I had felicity say "diamonds" as her catchphrase, which I think fits her well, and "yoyoyodel" as a greeting, which I don't think fits her at all.
Recently Quillson started calling me ladybro too, once he got Kid Cat's old shirt lol, so I don't know if it's something that villagers will say at random... Or if he picked it up from Kid Cat?