cockthievery
Similar to cock blocking, but it is where the female (cock) leaves with the cockblocker and their friends, not only leaving you cock blocked but also having the female stolen.
I was chillin' with a girl at a party when my friend came over with a small group of friends and started talking with me and my girl, then when he left, my girl left with the group. i am another victim of the horrible crime knows as cockthievery
cock block
cock block