Lil Twist -- who was arrested for DUI, stumbled and swayed during the field sobriety test and admitted to smoking weed just before driving ... BEAT THE RAP because cops say he wasn't THAT stoned.
It's just plain weird. Twist was stopped a year ago for doing 69 MPH in a 30 and running a red light. Cops noticed a lit blunt in the center console and smelled the weed. They also noticed his eyes were bloodshot and his speech was "deliberate and lethargic."