Ha! I saw fish prince on Tumblr first, but I follow a couple of people who play major video games as soon as they come out and make their fannish stances known first thing. That being said one of the initial items was a gifset of an actual late night TV skit, within weeks of the game's release, so apparently Twitter thirst for fish prince hit FAST and WIDE.

I've been watching let's plays of BOTW (it's very mellow) but have not yet reached fish prince. I have reached cross-dressed desert princess Link, though.