A review by fancyskeletons
English as She Is Spoke: Being a Comprehensive Phrasebook of the English Language, Written by Men to Whom English was Entirely Unknown by Pedro Carolino, José da Fonseca, Paul Collins

 I don't know about hilarious, considering the widely available bad translations we now have access to, but it certainly is funny.

For me personally, the context of the book is way funnier than its contents. How these two men thought this was a good idea is absolutely delightful. Bless their hearts.