buck·et 
(bŭkĭt)
(bŭkĭt)n.
1.
a. A cylindrical vessel used for holding or carrying liquids or solids; a pail.
b. The amount that a bucket can hold: One bucket of paint will be enough for the ceiling.
2. A unit of dry measure in the US Customary System equal to 2 pecks (17.6 liters).
3. A receptacle on various machines, such as the scoop of a power shovel or the compartments on a water wheel, used to gather and convey material.
4. Basketball A basket.
v. buck·et·ed, buck·et·ing, buck·ets
v.tr.
1. To hold, carry, or put in a bucket: bucket up water from a well.
2. To ride (a horse) long and hard.
v.intr.
Idiom: 1. To move or proceed rapidly and jerkily: bucketing over the unpaved lane.
2. To make haste; hustle.
a drop in the bucket
An insufficient or inconsequential amount in comparison with what is required.
[Middle English, from Anglo-Norman buket, from Frankish *būk, belly, hollow thing, from Proto-Germanic *būkaz (also the source of German Bauch, belly), perhaps ultimately of imitative origin (suggesting the notion of inflation or distension).]