Shitting on my game

(v) When a friend or another male interferes with your interaction with an girl. Usually by bringing the attention to himself by boasting or other means. Frequently occurs when the other male is jealous of your progress; an extremely douchey form of cockblock

John: So I finished that book you were telling me about

Linda: Yeah, isn't it great?

*Jack Enters*

Jack: Oh that book! You know that I actually worked with the author on a short story!

*Linda diverts attention to Jack*

Linda: Oh? What is he like?

John: Stop shitting on my game, Jack