chopped liver 

Someone perceived as being of little value or worth, as evidenced by being ignored when others are getting attention. Usually used as a semi-rhetorical question. Origin probably in American Jewish humor of the early-to-mid 20th century.

"What am I, chopped liver?" "What do I look like, chopped liver?"

chopped liver by Joel K. December 28, 2005

Chopped Liver 

To state that something or someone is useless and/or not important.

Kath: Oh Brett you’re so helpful!

Kim: Oh and what am I? Chopped Liver?

Chopped Liver by add my snap - goshsoph October 12, 2020

chopped liver 

(adjective) nobody, the person that the others ignore him and consider him nothing.

I feel chopped liver in dis fucking hood.

chopped liver by Fangsta March 17, 2003

invisible chopped liver 

The accomplished martyr’s ultimate verbal and emotional weapon when trying to get some sympathy.

What am I, invisible chopped liver?

invisible chopped liver by Dr Bunnygirl June 19, 2021