Name's probably a derivative of the song titled "Cocaine Cowgirl" by Matt Mays and El Torpedo (I think a well-chosen pun with Torpedo... *snicker*), and with methadone being used as a medication to help people off of opiates... (not quite cocaine, but... heh)
And, anyways, why not MAKE big-dick porn. I'm willing to give you a hand, if you need a stunt-dick for it...