PETE'S PALS FEAR REEFER MADNESS!

POTHEAD Pete Davidson can joke all he wants about his past drug problems, but his friends worry his sobriety will go up in smoke!

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During a recent stand-up gig in Atlantic City, Pete admitted, "I can't quit [weed] yet.

"I did coke and ketamine and f**king all the pills. All I have is weed left, so it's almost over, but I'm holding on for a little bit longer." Shockingly, the 30-year-old Saturday Night Live alum has been to rehab seven times!