nanonation

Etymology
Origin unknown. Earliest documented use by a micronationalist in its current meaning may have been in October 2016 by Max I of the Kingdom of Jupiter on the MicroWiki forums.

Noun

 * 1) A micronation which claims independence from another micronation, but is not recognised as such by its parent micronation.
 * 2) A micronation within a micronation.