What is "milk runs"

Usage examples of "milk runs".

To be frank, Herr Admiral, these milk runs of mine bore me to death.

As each of the three dangling arms of the machine plunged down, there was a clank and then a roaring, and out of the top of the vertical cylinder came pouring this incandescent substance that lit the place, and ran over as milk runs over a boiling pot, and dripped luminously into a tank of light below.