Believe the hype: Flavor Flav is in big trouble.

The 53-year-old former Public Enemy hype man was arrested in Las Vegas Wednesday morning, TMZ reports.

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Sources tell TMZ that Flav (real name: William Drayton Jr.) allegedly threatened his fiancee's teenage son with a knife in the midst of an explosive argument. (His fiancee, Liz, was reportedly involved in the dispute as well, and called 911.)

During the blowup, TMZ's sources explained that Flav was also physically abusive towards his fiancee. He was taken into police custody around 3 a.m.

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The Flavor of Love star has been charged with felony assault with a deadly weapon, as well as misdemeanor domestic violence; he is still being held in jail on a $23,000 bail.

This article originally appeared on Flavor Flav Arrested for Assault with Deadly Weapon, Battery: Report