Top Definition
Phlegm and mucus. You get phlegucus when you either have Strep Throat, A cold, or a Sinus Infection. Usually comes out in thick, acidic chunks when one coughs.
"Dude, My throat hurt really bad!"

"Really? Did you have some phlegucus stuck in it?"
by Lizzie01832 June 07, 2009
4 Words related to Phlegucus

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