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Small white seed shaped thingy that you sometimes cough up and spit out.

You do cough them up seeming like they come from your lungs
The other day I was talking with my friends when I coughed up a lung seed. My friends stared at me in confusion and disgust.
by AmyOnTheLawn March 20, 2014
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It's actually a slang word for tonsil stone. They form in your tonsils, completely harmless but you do form them and they're gross and they smell disgusting and yeah.
I was really annoyed because I could see the lung seed in my throat and I had been trying to cough it up all frkn day
by KawaiiMaster May 08, 2014
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