fool-er-y / fo͞o-lə-rē
noun (plural fooleries)
1. behavior or speech that is silly or lacks good judgement
Foolery, sir, does walk about the orb like the sun; it shines everywhere.
From “Twelfth Night” by William Shakespeare, 1564 – 1616
2. an instance of silly or foolish behavior or speech; a prank
My soul, never laugh at sin’s fooleries, lest thou come to smile at sin itself.
Charles Spurgeon, 1834 – 1892