v.1. To churn or agitate something into a state of turbulence: The storm whipped up the sea, endangering the ships. The wind whipped the fire up so that it raged out of control. The car whipped up the leaves along the road.
2. To cause something to form by churning or agitating: The storm whipped up massive waves in the normally calm sea. The hurricane whipped several tornados up in its wake.
3. To rouse the emotions of some group of people; excite some group of people: The candidate whipped up the mob with talk of reform. The finale whipped the audience up into a frenzy.
4. To summon some collective emotion or sentiment by exciting a group of people: The promoters whipped up enthusiasm for the new film. We'll need a lot of hype to sell this product, and our marketers can whip it up.
5. To prepare something quickly or easily: We whipped up a light lunch before setting out. I whipped some oatmeal up in just a few minutes.
6. whip up on To defeat someone decisively; outdo someone: The home team whipped up on its rival last weekend.