'Party Down South' Star Lyle Boudreaux -- Arrested for Drunk Driving and Drugs

"Party Down South" star Lyle Boudreaux must think Mardi Gras means, "please arrest me officer" -- because he just got busted for the 2nd consecutive year in Louisiana ... this time for boozing and driving.

Cops in Lafayette, LA confirm they pulled over Lyle Sunday night when he made a turn without signaling. Police noticed a smell of alcohol, and when the 29-year-old refused to take a breathalyzer test ... officers cuffed him and took him in for alleged drunk driving.

Bonus round -- for cops, not Lyle -- while checking him into jail ... cops say they found marijuana, and also booked him for possession. He was eventually released on $4,000 bond.

Lyle got a jump on his Mardi Gras celebration this year ... it officially starts next weekend. A year ago he got busted for burglary during a Mardi Gras celebration.