Top Definition
Portmanteau - the specific kind of disgusting, gunky mucus coughed up while suffering from 'flu.
My voice is almost gone at the moment because of this damn 'flucus.
by viscerebral May 28, 2010
1 more definition
A sudden rush of shit to the brain
Sammy sam, you are having a Flucus !
by Motion17 January 12, 2011

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