Ex-'Bad Girls Club' Chick Popped for DWI & Drugs

7/28/2014 12:25 AM PDT

'Bad Girls Club': Flo Arrested For DWI & Drugs ... After Giving Cops Fake Name

Florina "Flo" Kaja is still a 'Bad Girl' to cops in NY, where she got busted for DWI and drug possession -- but not before she tried to dupe 'em with the oldest move in the book ... TMZ has learned

Kaja -- from Season 4 of "The Bad Girls Club" -- was stopped by cops in Yonkers, NY on Monday night for making an illegal U-turn. According to police, she appeared to be under the influence ... acting erratic and fidgety.

Cops say they found a bag of weed and another substance they believe to be cocaine. Officers say Flo also gave them a fake name, which -- as every delinquent teen knows -- NEVER works.

Flo's been charged with possession of a controlled substance and DWI -- and cops say she also had an outstanding warrant for harassment.

Yeah, she bad.