This story is pretty crazy. Some guy is claiming that his tea from Starbucks was spiked with. . . HEROIN!

The man, Vernon Charles Allen Merriweather, said he ordered Oprah's tea and noticed the staff added hallucinogenics, heroin and Ambien, according to a new Federal lawsuit. Here is what he told TMZ:

Vernon Charles Allen Merriweather says he ordered Oprah's Chai tea last Fall in Buffalo, NY -- and noticed the staff added hallucinogenics, heroin and Ambien ... according to the Federal lawsuit.

Merriweather also says when he applied for a job (during a different visit) at the Starbucks -- he was told, "We don't hire n******" -- and the baristas called themselves an Aryan nation.

He is suing Oprah, and Starbucks and wants $15 million. Good luck with that, Vernon.