C10H15N.HCl Share definition Flag Noun. The hydrochloride salt of methamphetamine, commonly known as "crystal meth." Gregory: Hey guys, I'm a faggot and love C10H15N.HCl Sylvester: somebody shut this hamster up. C10H15N.HCl by Jack-the-stripper-ripper March 25, 2024 0 0 Get merch Get the C10H15N.HCl mug. Buy Now — $32.95 See more merch