D'Agostino Effect
When your friend rages at a video game so frequently that it causes the mood of the entire group playing with them to lose moral and get upset more easily.
Dan: "Wow I can't believe how mad Tyre got on Xbox last night."
Peter: "Nah man it's not his fault, he was playing with Tom, that's just the D'Agostino Effect."
Peter: "Nah man it's not his fault, he was playing with Tom, that's just the D'Agostino Effect."