The tell-tale acne craters found on the face of meth addicts and crack heads.
Girl, didn't you see all the crackne she has on her face? That white trash chick is cooked!
When you can read someone's mind, but you just don't give a shit what's in it. When the crap in someone's mind isn't even worth reading. When you wish you couldn't read the crap that was in someone's mind.
"That Sookie chic on True Blood is all telepathic an' shit, but she should be using her telapathy more often because the characters in that show are as slow as slugs."