Nngba

Nngba (🤫🤲 [n̩ːg͡ba]), also known as Classical Humanish or offensively pinker speak, is an extinct language once spoken by Humans.

It was born as an international medium of undecryptable communication during the earlier period when humans were enslaved by Greys. This original form, optimised to resist mind-reading attacks - was known as Nen-geba (which means "secret"), and it also had a signed version using only finger movements and a writing system that employed simplified emojis in a hieroglyphs-like fashion.

Nngba has been in a constant arms race with Reticulan psycho-tampering, and has thus evolved at an incredible rate and developed bizarre features for the purpose of evading decryption, while remaining possible to readily comprehend for its speakers. Many characteristics of the language constitute effectively maneuvers of linguistic espionage - for example, Nngba possesses grammatical structures for including multiple fake pieces of information to lay a "canary trap" of sorts.

By the time humans were integrated as free citizen in the early 23rd century and the Grey language had replaced it, this language had evolved to its final form. Nngba has been preserved as a ceremonial language and as part of the heritage of human culture, but in 2345 there are no more native speakers.

A draft explaining the basics of the language is available here