iron hoof Share definition Flag Cockney rhyming slang for poof (homosexual). Typically as with most rhyming slang only the first word is used in conversation. "Elton John was married!! But he's an iron hoof!""Look at the state of that iron!" iron hoof by NZBB June 22, 2009 0 0 Get merch Get the iron hoof mug. Buy Now — $32.95 See more merch