Def.- To reproach in a mocking, insulting, or contemptous manner.
Syn.- nettle, perster, rankle, tease, twit
"I see you with that snowball! Go ahead and throw it! I'm not scared! you couldn't hit the side of a barn! C'mon, throw it! I dare you!"
- Calvin and Hobbes
Well, Calvin here is directing this towards Hobbes, from which you can guess, is about to throw a snowball at him. The tone of this passage is made evident because Calvin tempts Hobbes to throw the snowball at him, making it seem as if he knows that he will not be pelted by it, and the exclamation marks help to emphasize his cockiness.