Pelirojo is another term for
marijuana, and it originated in the
Bay Area by a group of teenage girls. It came to be known as pelirojo because pelirojo means red hair in spanish, but it has the word ojo in it which means eye, which then just became pelirojo in code, so nobody who knows english or spanish can know what the user is
talking about. It can be a noun, adjective, verb, anything you want.