Rotten Core Share definition Flag When a woman has a very stinky, nasty vagina. Dude, you don't want to hit that, she has a rotten core! My bro Nate told me all about it! Rotten Core by Birdman_thedog April 28, 2008 0 0 Get merch Get the Rotten Core mug. Buy Now — $32.95 See more merch