Lil Twist — Named in Battery Report … at Justin Bieber’s Home

Exclusive 0801_lil_twist_bieber_gettyLil TwistJustin Bieber“s BFF — has been named in a battery report … by a woman who claims the rapper got aggressive with her inside Bieb”s Calabasas mansion, our sources has learned.

Law enforcement sources tell us … the woman who filed the report claims she was hanging out at Bieber”s home around 3:30 AM Thursday morning — Bieber was NOT there btw — when she decided it was time to leave.

But as she tried to exit the mansion, the woman claims Twist grabbed her by the arm in a forceful manner — and tried to prevent her from leaving the home.

We”re told the woman drove straight from JB”s home to a nearby Sheriff”s Department.

Sources say cops are investigating the allegation. 

It”s not the first time JB”s sidekick has been accused of wrongdoing — just last month, Twist was arrested for DUI while driving Bieber”s famous Fisker Karma.

Story developing …