Crystal Dick Meaning

(countable, idiomatic, slang) A penis that is flaccid as a result of methamphetamine or other drug use.

Example: 1998, Doug Sadownick, "Spinning out of control", The Advocate, 26 May 1998:
  A former hustler who has been at this bar every night this week says "crystal dick" isn't a problem for him, but he has seen others rub their dicks so raw that they bleed.
2003, Jeffrey N. Chernin & Melissa R. Johnson, Affirmative Psychotherapy and Counseling for Lesbians and Gay Men, Sage Publications (2003), ISBN 0761917683, page 95:
  Users also report that crystal heightens sexual arousal and increases stamina by delaying orgasm, and they report highly intense orgasms. However, after long-term use, the urge to ejaculate becomes all-comsuming. Impotence is a long-term consequence, and users develop “crystal dick,” which is the inability to have an erection.
2005, Chad Graham, "Back from the Brink", The Advocate, 27 September 2005:
  The impotence drug finally gave meth users a way around "crystal dick," the erectile dysfunction typical with crystal.
2006, Michael Shernoff, Without Condoms: Unprotected Sex, Gay Men and Barebacking, Routledge (2006), ISBN 9780415950244, unnumbered page:
  Some crystal users report that the combination of increased anal sensitivity and crystal dick tends to make them “instant bottoms” (Frosch, Shoptaw, Huber, Rawson, & Ling, 1996; Heredia, 2003).