noun, plural Z's or Zs, z's or zs.
noun (used with a plural verb) Slang.
Origin of z's
Examples from the Web for zs
Zs seem to kinder go with the astrology business, somehow—I dont know why.Short Sixes|H. C. Bunner
Curves showing the relation of 1/ρ and ZS or μ and B, are called “permeability curves.”
In the other case (zs) the next note is a Third lower: but it does not seem to belong to the circumflexed syllable.The Modes of Ancient Greek Music|David Binning Monro
They think if they talk like they had an egg in there mouth an put in lots of zs its French."Same old Bill, eh Mable!"|Edward Streeter