when a female finds a picture on her mans cellphone of another females cooter, so she sends a picture by cellphone of her cooter to the other female who is messing with her man.
Tonya found a picture of Kim's cooter on her mans cellphone. So Tonya sent a picture of her cooter to Kim, telling her to back off her manGreg. So Kim was cootered by Tonya.
To be coopered means to be friends with someone for a few weeks and then just randomly hook-up all of a sudden in a drunken night, but you are still friends after it.
Random: Hey Rachel! Am I going to get Coopered tonight?
Rachel: Nope, I am sorry but no one is getting coopered tonight.