As a result of; after; subsequent to.
(derogatory) By the effort of; by drawing an unfair advantage from.
The country was built on the back of slave labor.
He snorted and hit me in the solar plexus. I bent over and took hold of the room with both hands and spun it. When I had it nicely spinning I gave it a full swing and hit myself on the back of the head with the floor. Raymond Chandler
There's a smokestack on the back of every government program. Milton Friedman
Being kissed on the back of the knee is a moth at the windowscreen. Anne Sexton
The fly on the back of a water buffalo thinks that it's taller than the buffalo. Filipino Proverb
Ill comes often on the back of worse. English Proverb
Knowledge without wisdom is a load of books on the back of an ass. Japanese Proverb