Odoriferous emanation from a ladies breasts. Resulting from perspiration and a general lack of hygiene. It's a bacteria that grows from sweat, flakes of dead skin, and dirt. A cousin to fumunda cheese. Also known as Boobie B.O., Sour Jugs , Spoiled Hooters , Breast Butter, Moldy Melons, Noxious Knockers, Rotten Cans, Corrupt Cleavage, and Tit Taint.
George really hit it off with Sara, but he said she had such a terrible case of rack stank that he almost blacked out while motorboating her ample bosom.