if something is the order of the day, it is thought to be necessary or it is used by everyone in a particular situation.

For countries undergoing a recession, large cuts in public spending seem to be the order of the day.

Champagne was the order of the day as we all congratulated Tim on his success.

• when was a mere twinkle in father's eye
• when was a mere twinkle in their father's eye
• when was a twinkle in father's eye
• when was a twinkle in their father's eye
• when your ship comes in
• where is coming from
• where someone is coming from
• Where's the beef?
• Where there's a will there's a way!
• Where there's muck, there's brass.
• where there's smoke, there's fire
• whet appetite
• whether by accident or design
• whether or not
• whet someone's appetite
• which way the wind is blowing
• while away
• while away something
• while back is turned
• while someone's back is turned
• While the cat's away .
• While the cat's away the mice will play.
• while the going is good
• whip into shape
• whipping boy