Verb,
1. The action of teaching crabs
how to read2. The process by which crustaceans are made literate,
Both of these are considered
Forbidden Knowledge of the highest order, and must never be spoken of, outside of complete secrecy. Many a fine man has fallen to the curiosity of teaching literacy to crabs, and have been executed or imprisoned- or worse- for their crimes.
Teaching crabs
how to read is a gateway crime, in the ancient days, many of the most infamous dark lords used literate crabs as minions, for it allowed them to use more powerful and complex methods to expand their dominion over our small realm. In the darkest of days, crabs as big as houses would be sent in droves to raze cities, Whole countries were brought to their knees by the terrors wrought by the dark lords and their armies.
The last of the Literate Ones, as they are known by Crabfolk, was slain in AD 1356.
Ever since, the Crabfolk have lived in harmony with humankind.
