fadistic
You're like a kid on a sugar high, and every new trend is just another hit of sugar. You won't stop until everyone else is high too.
'You're gonna do the dance or I'm gonna eat your chips!'
'This new song is so good I'm gonna sing it in the shower and you're gonna sing it with me!'
'If you don't try the new candy, I'm gonna throw a fit in the middle of the mall!'