Please, what is the significance of the term ‘chopped liver’?

Ouf, I shoulda come in here first! thanks for asking this, dxb....I finally figured it out, from context, in another thread here (and now I cannot remember the thread subject - back in a jiff...)...

Edit: It was Kiran's "Correctness" thread....There's a fine example of chopped liver in there. Paté, one could even say, as has been pointed out....