lung cookie 

A semi hard saucer shaped gob of phlegm that one can project due to its mass.

I coughed up a lung cookie and shot it across the room.

lung cookie by michoo and schmoo March 12, 2005

lung cookie 

a large amount of mucus that you cough up usually when you are having sinus problems

Man:Did you see the size of that lung cookie I just coughed up?
Woman:No, that's nasty!

lung cookie by d-girl23 May 11, 2009

lung cookies 

The chunks of mucus that you cough up when you have a chest cold.

Dude, hold up, I gotta spit out these lung cookies i've been baking!

lung cookies by Dana Faulks January 10, 2009