The Centurian shakes was a medical condition.
history and specifics[]
In the year 2268, Montgomery Scott, after returning to his Starfleet uniform, commented that the outfit he had worn while undercover as a pirate was beginning to give him the Centurian shakes. (TOS comic: "The Flight of the Buccaneer")
- "Centurian" is possibly an alternate spelling of "Centauran" or "Centaurian".