Taking a piss off the Hollywood sign either is protesting the perfection wanted of people or physically urinating off said sign.
Man:”I went and got a drink.”
Man 2: “Oh no.”
Man: “Yeah I ended up Taking a piss off the Hollywood sign.”
Man 2: “Protesting?”
Man: “No... literally.”
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi