when something is clean,the say its spick and span ?????

Answer 1

The oldest form seems to have been spann-nyr, which is Old Norse for a fresh chip of wood, one just carved from timber by the woodman’s axe, so the very epitome of something new. (Nyr is our modern new, while spann is a chip, the source of our spoon, an implement that was originally always made from wood, so that wooden spoon is a retronym.) By about 1300 the Old Norse phrase had started to appear in English in the form span-new, a form that lasted into the nineteenth century.

This evolved by the sixteenth century into an elaborated form similar to the modern one: spick and span new, still with the old sense of something so new as to be pristine and unused. Spick here is a nail or spike. This form seems to have been inspired by a Dutch expression, spiksplinternieuw, which referred to a ship that was freshly built, so with all-new nails and timber. It is first found in Sir Thomas North’s translation of Plutarch’s Lives in 1579, “They were all in goodly gilt armours, and brave purple cassocks apon [upon] them, spicke, and spanne newe.”

By the middle of the following century, it had been shortened to our modern spick and span. It had also shifted sense to our current one, for something so neat and clean that it looks new and unused. Samuel Pepys is the first recorded user, in his diary for 15 November 1665: “My Lady Batten walking through the dirty lane with new spicke and span white shoes.”

Answer 2

It originated from advertising of a brand of cleaner called - you guessed it "**** and span" While I don't know if they still sell the cleaner today, I know that it was available in the early 1990s.

Answer 3

http://www.phrases.org.uk/meanings/spick-and-span.html

Answer 4

You got it. all clean, spi.c and span...I think its the name of a cleaning product.

Answer 5

Yep. It means it's clean.