vt to shake or agitate with violence.
2. churn ·vi to perform the operation of churning.
3. churn ·vt to stir, beat, or agitate, as milk or cream in a churn, in order to make butter.
4. churn ·vt a vessel in which milk or cream is stirred, beaten, or otherwise agitated (as by a plunging or revolving dasher) in order to separate the oily globules from the other parts, and obtain butter.