verb - to clear out a message board like a stampeding elephant clears out a circus tent. To suck the life out of all that it comes in contact with.
noun - a wet blanket.
The message board was the best place in the world until this dude came along and shivettes the place.
Having a giant bright red shiney chin.
1.That chick would be hot, if not for her shivettes. 2. Its a good thing you have a shivettes, it takes the focus off your fatness.