Comedienne Mo’nique has been accused of using and dealing drugs by ex-fiance Marvin Dawson, who is penning a tell-all on the Phat Girlz star.

Marvin tells The National Enquirer: “Not only was she an avid marijuana user, but she also did cocaine. And what’s worse, she began making money dealing coke. Mo’nique threatened my life. She said if I ever told anyone about her lifestyle, she’d hire someone to kill me.”

Mo’nique has used her lawyer Warren Brown to deny Marvin’s claims, citing his history of theft, and gun and drug possession charges.

“Marvin Dawson has no credibility – he’s a nut. If she was dealing in kilos of cocaine, the DEA (drugs enforcement agency) should have her on their suspects list. See if they have anything on her. That’s dumb.”