Sabe o que é caralho? Sabe o que é rock? Então já sabe tudo.
A blog about rock and roll men. "Caralho" is a portuguese word that means something like "cock" or "dick". So, the name means "The Cock of The Rock". But "caralho" may be an adjective, and the blog title can be read as "The fucking rock".
Do you know what cock is? Do you know what rock is? Then you know everything.