'Trad' Hags.
(media.scored.co)
In college i got do sig around a dead body in anatomy class. I found the guys lymph nodes and they were black. I asked the teacher why and she said "oh he probably has tattoos" sure enough old deadass boomer on the table had some blurry navy tattoo on his arm. From the day you put the ink in your body, your body never stops trying to get rid of it via lymphatic fluid.