In some circles,
dick is the proper name for any
phallus, whether
penis or
dildo. (I'm told this is correct usage for the
queer community in the
San Francisco Bay Area, and I've seen similar usage in
short fiction.)
In the straight world, a dick is a penis. The distinction between dick and not-dick is: Is it an actual penis?
In the broader sense I describe, the question is simply: Is it intended to be used as a dick? Its material composition doesn't matter.
To refer specifically to "real" dick, one can say "organic dick".
SOURCE: Conversation with a publisher/author whose name I will not drop, but who knows whereof sie speaks.