derogatory term used for a vaginal infection, however the infection has nothing to do with the color blue nor does the vagina actually turn blue. its some made up term to gross people out and put others down.
The image of the blue waffle that had went viral in the past is indeed real and not photoshopped like some others have suggested. While the blue waffle is not a specific infection or disease, it is rather due to general neglect of a severe prolonged infection of the vagina that almost pairs with gangrene. Common in third world hookers and general women who have given up on life/severe mental problems.