hermdoggin Share definition Flag When two hermaphrodites (hermies or hermdoggers) have intercourse while penetrating eachothers vaginas with their penises. Pat and Chris were hermdoggin under the jungle gym during recess. hermdoggin by Balmoral Drunks September 1, 2010 0 0 Get merch Get the hermdoggin mug. Buy Now — $32.95 See more merch