Gaggery
Gaggery is when you're so excited about something you’re basically drooling over it. You won’t shut up about it and you’ll probably make other people annoyed.
He got a new toy and now he’s talking about it nonstop. I can’t take it anymore. He’s a gaggery.
She got a new perfume and now she’s wearing it everywhere. I smell it in my dreams. She’s a gaggery.
This guy got a new car and now he’s bragging about it like it's a victory.