MTV Reality Star Arrested

According to law enforcement, Creepa -- real name Thaddeus Chaylon Martin -- provided counterfeit U.S. bills to a female associate and had her buy a $145 cell phone at a SuperWalmart in Gainsville.

Once the woman bought the phone, Creepa allegedly took it to a different Wallmart and returned the phone for legitimate bills.

It's unclear how authorities uncovered the alleged scheme, but when investigators spoke with the woman who purchased the phone ... she told cops she had no idea the money was bogus.

According to the report, the woman "became extremely irate with [Creepa] to the point of having to be restrained by [police] to keep her from physically attacking [Creepa]."

Creepa was charged with multiple counts of fraud and was hauled to Alachua County Jail -- where he was booked and posed for an angry mug shot.