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1.
Spanish slang for the human penis common in Argentina and other Latin American countries.
Cerrate la bragueta que se te ve la poronga
by Jorge Luis Borges March 25, 2008
 
2.
it means a enormous dick, cock.
You have to say it in a funny way
Chloe: I want bread with ketchup!
ChaChO!: And my poronga with mayonese!
by Ch! & pnkr.. May 03, 2005