seal on a bedsheet

English

Noun

seal on a bedsheet (plural seals on a bedsheet or seals on bedsheets)

1. (vexillology, humorous, derogatory) A flag that consists of a seal or a coat of arms on a monochrome background.

   The flag of Quintana Roo is nothing but a seal on a bedsheet.

Usage notes

The phrase is usually derogatory, since it implies an overly simple and low-effort flag design, especially in relation to state flags of the United States.