Bumper crop. A colloquial name for a bountiful or very large crop.

Bumper crops of wheat, corn and cotton are important for the reason, for one thing, that they
create tonnage for the railroads that depend largely for their earnings on these crops and, for
another thing, because they constitute a good part of the country's exports. Wheat is exported
largely in the kernel and in the form of flour. Corn is exported in the kernel and as meal and also in
the form of provisions, being used extensively as feed for hogs from which are derived pork, lard,
hams, bacon, etc. Cotton is exported heavily in its raw state.