A reply given to someone who wishes for something because a part of their life is unfair, basically stating that life is full of good and bad things. In essence, wishes mean nothing.

This is the earliest version of the saying, with the reference to Germans eating shit coming from American soldiers in WWII.
by Bill Tetley June 19, 2011
Get the Wish in one hand, shit in the other, and see which hand the German guy eats out of. mug.