1. A mix between two languages: Portuguese (Português) and English (Inglês).
2. Portuguese speakers trying to speak English in a most embarrassing manner. (i.e. "meednight.")
3. English speakers trying to speak Portuguese in a most embarrassing manner. ( i.e. "popozão.")
Franglais and Chinglish are similar terms describing the mixture of English with French or Chinese repectively.
PortugLês: Por meednight*, eu comerei na esse muito dorky*, non-gangsta* restaurante qual você quis, dangit*!
English: For midnight, I'll go to that super-dorky, wack restaurant you wanted me to go to, dangit!
*stars are for english words, maybe misspelled.