I will not assert that the interpretation of dreams due to dental stimulus as dreams of masturbation (the correctness of which I cannot doubt) has been freed of all obscurity. I carry the explanation as far as I am able, and must leave the rest unsolved. But I must refer to yet another relation indicated by a collquial expression. In Austria there is in use an indelicate designation for the act of masturbation, namely: "To pull one out," or "to pull one off." I am unable to say when these colloquialisms originate, or on what symbolisms they are based; but the teeth would very well fit in with the first of the two.
The Interpretation of Dreams