backdoor matadore Share definition Flag (noun) one who has anal sex with the grandeur of that of a king, or to be more exact, an anal bullfigher. Josh isn't no lightweight when it comes to anal sex-- hes a backdoor matadore! backdoor matadore by Wookiestick May 13, 2004 0 0 Get merch Get the backdoor matadore mug. Buy Now — $32.95 See more merch