1
general::
Phrase(s): crank something out
Fig. to produce something quickly or carelessly; to make something in a casual and mechanical way. • John can crank a lot of work out in a single day. • The automated production line could really crank out parts, but the quality was shoddy.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Produce, especially mechanically or rapidly, as in I don't know how he can crank out a novel a year. [Colloquial; mid-1900s]
American Heritage Idioms