Weiner Cousins Share definition Flag When two men have had sex with the same woman/women, they become weiner cousins. This is a bond that can never be broken. We're weiner cousins now, that means we're closer than brothers. Weiner Cousins by Bloodbath 87 April 22, 2009 0 0 Get merch Get the Weiner Cousins mug. Buy Now — $32.95 See more merch