[whip up] {v.}, {informal}
1. To make or do quickly or easily.
* /Mary whipped up a lunch for the picnic./* /The reporter whipped up a story about the fire for his paper./
2. To make active; stir to action; excite.
* /The girls are trying to whip up interest for a dance Saturday night./
Compare: STIR UP, WHOOP IT UP(2).