>>87912030It's like a blackhead equivalent built up in your bellybutton, various bits of dirt and bacterial mass and hair that build up and harden from the deepest part reaches of your bellybutton building outwards until it starts poking out
I only really noticed it because I felt something hard there for months and then eventually noticed a tuft of hair sticking out that I thought was just a new growth or something so I didn't even think to try puling it out until later