noun, plural thim·ble·fuls.
Examples from the Web for thimbleful
Even more important, I got in my thimbleful of quality time with the man himself.
Sulphur to purify the blood may be taken three times a week—a thimbleful in a glass of milk before breakfast.Searchlights on Health: Light on Dark Corners|B.G. Jefferis
He tossed off a thimbleful of the purple wine with a flourish.Chance in Chains|Cyril Arthur Edward Ranger Gull
A grass-seed and a thimbleful of soil set all the sciences at nought.Prose Fancies|Richard Le Gallienne