I read that as....'You've got a SPHINCTER in your hair.'
(
Doctor When May your wife shat and chipper,
Fri 13 Jul 2012, 17:03,
archived)
Most people think sphincter refers to the rectumbut actually it's just a kind of muscle structure of which the anus is just one. We have sphincters in our eyes, so you're not far off.
(
Photoshop Bitch 2014 edition,
Fri 13 Jul 2012, 17:08,
archived)