A slut who will play Call of Duty with you and then you will get lucky after you beat her in the game several times
Jim: Hey that new girl Danica seems like a cool girl to hangout with.
Rob: Yea she is pretty cool but she is a COD Fish.
Jim: What's wrong with that Rob? are you gay or something?
Rob: No i am not saying there's anything wrong with that at all
A title of honor given to those have played Call of Duty for at least 13 hours straight. CoD Fish are devoted to the path of video games, and may go to great lengths just to play Call of Duty. however, they are not totally obsessed, unlike "stinky CoD fish". all hail CoD Fish!
"hey where were you yesterday?"
"off playing C.o.D. for 18 hours"
"nice. congrats, CoD Fish!"