dirty sanchbrow

When the girl your having sex with no longer has eyebrow(s) drawn on so you stick your dick (or finger) in her butt and draw on new one(s)

I was doing her in the butt and when she turned around and looked at me she was missing an eyebrow I pulled my dick out of her butt and drew a dirty sanchbrow!

I gave her a dirty sanchbrow!