Penis Day? Are you kidding me?
My BFF sent this photo, among others from a “Penis Day” celebration, which, even if this were part of an elaborate, moronic hoax (is it?), is an actual thing, unless the entire history for the Wikipedia entry Hōnen Matsuri was developed entirely in support of such hoax.
I have a feeling bfp would do somersaults if she went to this celebration. I would be there as her spotter.