The knotty afro that forms on the middle of a scrotum, anatomically known as the raphe. A stunning intellectual combination of the words "raphe" and "afro". Can refer to an actual raphro, a person's disgusting or mutilated haircut, or even untrimmed facial hair. Thanks and god bless.
Example: Yo, check out Dane's chin raphro, that thing is sick!
Example: I put my raphro near Jane's mouth last night, and next thing I know she was coughing up pube-balls!