n. The amount held by (or moved by) a spade (shovel) at once. A shovelful.
the GNU version of the Collaborative International Dictionary of English
n. As much as a spade will hold or lift.
The Century Dictionary and Cyclopedia
n. As much as can be taken up with a spade.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the quantity a shovel can hold
Word Usage
"There's seems little point in working our way through the whole sorry mess of manure, shovelling it out spadeful by spadeful, not when the whole construction is built on poisoned earth over a cess-pit of raw sewage."