Mongo has the same meaning in English, but as a Millennial, I've literally never heard this used in real life, only seen it referred to as an old insult. So it'

Mongo has the same meaning in English, but as a Millennial, I've literally never heard this used in real life, only seen it referred to as an old insult. So it's quite likely that the founders and early users of MongoDB knew it was an insult.