He was filled with 'the milk of human kindness'. [=he was filled with kindness; he was very kind]
They 'milked' [='exploited'] their advantage for all it was worth.
greedy landlords 'milking' their tenants of all their money
(..) Let's go! Are you hurt? You're bleeding. That's not his blood. What is this? It's Mother's Milk. It's okay. Sleep. Get some rest. How do you know this place even exists? (..)2015 Mad Max: Fury Road
(..) Today we haulin' Aqua Cola. Aqua Cola! Today we carry fruits and vegetables! / Fruits and vegetables! And today we carry mother's milk! Mother's Milk! Joe! Joe! Joe! Immortan Joe! Give it up, for the Immortan Joe!!! Once again, we send off my (..)2015 Mad Max: Fury Road