Yeah I think all the mucus we cough up are called plugs. Except for the little stringy light green stuff. Nasty chunks of mucus plugs. Haha Tumbleweed I show my family and boyfriend my muscus to haha. I've coughed up what my dr calls very old mucus. It's tiny little actual chucks, no liquid whatsoever, they look almost like a booger haha. I know it's groos but I kinda feel good when I cough them up because I know I'm bringing up old stuff which is good. Better to cough it up then have it in me.