golden section 
noun
The division of a line so that the whole is to the greater part as that part is to the smaller part (i.e. in a ratio of 1 to 1/2 (√5 + 1)), a proportion which is considered to be particularly pleasing to the eye.Both shank and line are in turn struck through by a diagonal, recalling the harmonious proportions of a golden section....
- Among his most prized possessions were his books of Plato, including the Timaeus in which the mathematical ratios of the golden section are described.
- So the phi by phi squares are themselves divided at their own golden section ratios by the side of the other overlapping square.
- the whip hand
- the whole ball of wax
- the whole enchilada
- the whole nine yards
- the whole schmear
- the whole shooting match
- the Whore of Babylon
- the windows of the soul
- the wish is father to the thought
- the witching hour
- the Word (of God)
- the word on the street
- the work of ——
- the world and his wife
- the world is your oyster
- the world, the flesh, and the devil
- the worried well
- the worse for drink
- the worse for wear
- the writing (or handwriting) is on the wall
- the Writings
- the wrong side of the tracks
- the wrong way round
- thewy
- they