SHUT THE FUCK UP!!!
works better then "Shut up."


Danielle: *singing loudly* 
Julie: Can you please shut up?
Danielle: *keeps singing*
Julie: Shut up.
Danielle: *keeps singing*
Julie: I'm serious, this is really embarrassing.
Danielle: *keeps singing even louder*
Julie: SHUT THE FUCK UP!!!
Danielle: *shuts the fuck up* :O