fadistic - You're like a dog with a bone, and the bone is every new fad

You're like a dog with a bone, and the bone is every new fad. You won't let it go until everyone else is stuck with it too.

'You're gonna like this new meme! I've already posted it 10 times and I'm not stopping!'

'If you don't wear that dumb sock, I'm gonna sit on your face until you do!'

'This new song is the best thing since sliced bread! You're gonna listen to it or I'm gonna throw a tantrum!'