To put a dirty mop in scented boiling water and twirl the mop stick between your hands causing the mop to 'whisk' the water and become dazzlingly clean.
(Currently used by about 5 people in a boarding school in the North of England)
Toilet-cleaner: 'How do you keep your mops so clean and spankin' white?'
Care-taker: 'You need to twizzle 'em otherwise they'll become black and stink of old farts.'
34👍 17👎