When a fangirl
meets an actor/actress from a show where she is extremely active in the fandom
and cannot control embarrassing and involuntary enthusiastic interjections like "I love you so much!" or "You're a god/goddess!" from popping into the conversation when meeting aforesaid actor. Inevitably uncomfortable for both the actor and the fan.
At Comic Con
Fandom chick 1: Where's Maggie?
Fandom chick 2: I think she's still in the bathroom crying.
Fandom chick 1: Aww poor thing...but it made David Duchovny really uncomfortable when she kept declaring her love and sobbing in front of him.
Fandom chick 2: I do feel bad for her. But she's starting to get a reputation. If she can't get control of that Fangirl Tourette's she's gonna get banned from future conventions.