Meanings
According to the OED, the term is borrowed from the Banyans in the East Indies, a caste that ate nothing that had life.
In British naval tradition, a day of the week when galley kitchens served no meat on board ship.
A picnic or cookout for the ship's crew.
Example Sentences
1
I had a banyan day at work today – meetings all day and no time to get anything done.
2
Yesterday was a total banyan day for me – everything seemed to go wrong.
3
I'm feeling exhausted after a banyan day of running errands and doing chores.
4
It was a banyan day at the office with piles of paperwork and deadlines to meet.
5
On a banyan day like this, all I want to do is stay in bed and relax.