White female brain here and I still have no clue what the joke is and know the person who did this probably doesn't either. Maybe because one can cause blood and the other collects it? There, I came up with xir's witty solution... Again, the left can't meme. Also, I'm assuming the xir in the picture is sponsored by StayFree/Always? Cause what a waste of environmental resources. Why not use a menstrual cup or cotton reusable pads. She's going to cause the destruction of our planet sooner!!!!!!!!!!!!!! The horrors!!!!!!