Top Definition
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.
by michoo and schmoo March 12, 2005
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!
by d-girl23 May 11, 2009
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