To be chowdered is to make out with a girl within 30 minutes of her giving a different dude head, preferably in the rank ass bathroom of your local bar.
when a woman sends a picture of her cooter to another woman on her cellphone, email, etc. warning her to back off her man, because she found the other womans cooter on his cellphone to begin with.
Kim was cootered by Tonya, when Tonya found Kim's cooter on her man Gregscellphone.