Peanut Butter Jelly Time didn't originate from Family Guy, its been an Internet fad for years now (and when I say fad, I mean a pop-up spam everywhere).  But yes the Male Tauren Dance pwns just like all other male Horde dances, especially when ur a boomkin-spec druid (Boomkin dance on top of the dead corpses of the Alliance = teabag = pwnage).