a phrase used to refer to England in the Elizabethan period, which is often seen as a great period for the country, when it was powerful and prosperous, the people were happy and there was a lot of singing, dancing and happy music.
MERRY ENGLAND
Meaning of MERRY ENGLAND in English
Oxford guide to British and American culture English vocabulary. Руководство по британской и американской культуре, Оксфордский английский словарь. 2005