Red Winging 

Banging a girl who is on her period.

Joe totally red winged her last night

Red Winging by Mike May 13, 2005

redwinging it 

To go downstairs on a girl when she's on the rag. (White people definition:to perform oral sex on a menstrating female)

That bitch wanted me to redwing it so I had to slap her with my cock a couple times!!!!!

redwinging it by Popimp and Jugador April 30, 2003