'What Are Those' Meme Creator Brandon Moore Accidentally OD'd

Brandon Moore -- the man who created the viral "what are those" meme -- died after a night of ingesting a bunch of drugs, including cocaine and ecstasy ... TMZ has learned.

According to the Contra Costa County Coroner's report ... the exact cause of death was polypharmacy -- meaning he died as a result of ingesting multiple drugs. The coroner says Moore's blood tested positive for cocaine, morphine, codeine, methamphetamines and ecstasy.

What's more ... the report says Moore's wife, Noonie, told authorities he drank and possibly ingested cocaine the night before he was found dead. According to the report, there's no evidence to suggest Moore ingested the drugs with the intent to harm himself ... and lists the death as an accidental overdose.

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