plurf

a wad of cum dripping from your philtrum

and/or

a chunk of feces secretly stored underneath your tongue for fun at parties.

Billie: Dude! are you hiding a plurf in your mouth?!
Chuck: -ppppluuurrrrfffff-

Dannie: Candassce, I think I accidentally gave you a plurf...

by Plurf all night October 24, 2006