"Brevity is...wit."
Omitting needless words.
The Laconic subpages are for brief statements describing the core idea of the page they are attached to.
Laconic/ pages are allowed for tropes; works; and standalone items in the Useful Notes/, Just for Fun/, Sugar Wiki/, and Darth Wiki/ namespaces.
Laconic/ pages are forbidden for indexes and pages in the Administrivia/, Characters/, Creator/, and Recap/ namespaces.
The full list is available here.