Wiktionary
n. 1 An indefinite but emphatically large number. 2 (context UK Australia NZ English) Tiny balls or strands of multicoloured sugar, sprinkled over ice cream, desserts or party foods.
Wikipedia
Hundreds and thousands means "an indefinite but emphatically large number".
It is also used to mean various kinds of decorative confectionery:
- Sprinkles
- Nonpareils
- Muisjes
Usage examples of "hundreds and thousands".
She was only walking up some steps that the Night's Watch had hewn hundreds and thousands of years ago.
I give unto you a promise that you shall be delivered this once out of your bondage, inasmuch as you obtain a chance to loan money by hundreds and thousands, even till you have obtained enough to deliver yourselves out of bondage.
There was no nod of recognition from the hundreds and thousands of people passing him on the street.
And they do say that Calormen is hundreds and thousands of miles away, right at the world's end, across a great sea of sand.
And they do say that Calormen is hundreds and thousands of miles away, right at the world’.
God alone knows how many hundreds and thousands of lives they've cost already.
People by the tens and hundreds and thousands starved or froze to death.