I've never heard this word before either, but here it is in the urban dictionary: http://sv.urbandictionary.com/define.php?term=Bongoloid It seems to be mostly used to mean someone who has smoked so much cannabis (hence the word "bong" - a pipe used for smoking cannabis) that they're completely out of it (don't know what's going on).

Perhaps you mean Mongoloid?

Yes, "Bongo-----loid" as in being made absolutely intoxicated by smoking a Bong with either Cannabis or some other intoxicating drug such as Crack Cocaine or one of the synthetic marijuana's such as "spice" or K2 or other products.

The disease, Down's Syndrome--el síndrome de Down--was once called "Mongoloid idiocy," idiotez mongoloide. So it is a play on words, a combination of "Bong" (the pipe used for smoking cannabis) with "mongoloid." It implies someone whose brain has been damaged by excessive marijuana smoking. The doctor who described the disease, Down, thought that the faces of children with the disease resembled Mongolians. Obviously it is a slang word, and a VERY impolite one. It is disrespectful to call anyone an idiot; the old term "Mongoloid idiot" is disrespectful both to Mongolians and to people with Down's Syndrome. It is pretty bad when you have a word that insults three different groups at the same time!

I have never heard this word, and there is no reference to it in the English dictionary.