churn out
To produce something in large quantities, often quickly and/or carelessly. A noun or pronoun can be used between "churn" and "out." That novelist seems to churn out a new bestseller every few months. I want to open a fine dining restaurant, not just some place that churns out burgers and fries.
churn something out
to produce something in large numbers, perhaps carelessly. We churn toys out by the thousand. This factory can churn out these parts day and night.
churn out
Produce in an abundant and automatic manner, as in He churned out a novel every six months. This idiom transfers the turning of milk into butter to other kinds of production. [Early 1900s]
churn out
v. To produce something in an abundant and automatic manner: The author churns out four novels a year. Although the chairs look handmade, the company churns them out in a factory.