get into (one's) Sunday best

get into (one's) Sunday best

To get dressed in one's very best clothes, as one would wear to a Sunday church service. Instead of some big party, let's all get into our Sunday best and go for lunch at a fancy restaurant for my birthday! This is going to be a formal event, so we all need to get into our Sunday best. Mom wants us all to get into our Sunday best so she can take pictures for the family Christmas card.

See also: best, get, Sunday

Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.