This is the 7642nd most frequent Portuguese word.
papuda
"Papuda" refers to someone or something with a prominent chin or throat, or it can colloquially mean a talkative person.
In this context, 'papuda' refers to a colloquial term for a prison, named after a specific place known as Papuda.
A papuda da região é visitada por pesquisadores frequentemente.
The prison in the region is visited by researchers frequently.
Here, 'papudo' (derived from 'papuda') describes someone or something with a swollen or chubby neck or throat, often used humorously.
O papagaio ficou papudo com tantas frutas que comeu.
The parrot became chubby with all the fruits it ate.
In this example, 'papuda' is used colloquially to describe someone who talks a lot or is talkative.