Thanks Andy and Izzy, for your advices, which pretty much hit the spot. Especially the suggestion of variations of its spelling proved to be the key. I did another around of search with "quibe" and "kibbeh", and drew a lot more info. With "quibe" still most of info are in Portuguese. (The product is of Brazillian origin, thus the prominence of Portuguese language) With "Kibbeh" I got more input in English, and it is treated as a Middle Eastern (Lebanese) fare.
Quibe/kibe is indeed practically identical to bulghur (which also boast several different spelling variation when it is transliterated in English...), brought over to Brazil by the immigrants from the Middle East. And the typical dish is obviously this one
(sort of fried meatballs), which seems quite yummy and definitely to be tried soon!!