In agriculture, a bumper crop is a

crop A crop is a plant that can be grown and harvested extensively for profit or subsistence. When the plants of the same kind are cultivated at one place on a large scale, it is called a crop. Most crops are cultivated in agriculture or hydropon ...

that has yielded an unusually productive harvest. The word "bumper" in this context comes from a usage that means "something unusually large", which is where this term comes from. Though very productive harvests often have positive implications for the producer, a bumper crop can also be a source of problems, such as when there is insufficient storage space (

barn A barn is an agricultural building usually on farms and used for various purposes. In North America, a barn refers to structures that house livestock, including cattle and horses, as well as equipment and fodder, and often grain.Alle ...

grain bin A silo (from the Greek σιρός – ''siros'', "pit for holding grain") is a structure for storing bulk materials. Silos are used in agriculture to store fermented feed known as silage, not to be confused with a grain bin, which is use ...

s, etc.) for the overlarge crop. The term "bumper crop" has also been used to refer to a similar large result in other activities, or as a

pun A pun, also known as paronomasia, is a form of word play that exploits multiple meanings of a term, or of similar-sounding words, for an intended humorous or rhetorical effect. These ambiguities can arise from the intentional use of homophoni ...

, such as with a group of automobiles (for their front/rear bumpers).Ted Schnell (editor)
"Cooler Temps Draw More Cars, Larger Crowd to Cruise Nite"
''St. Charles Patch'', St. Charles, Illinois. 25 July 2013. Accessed 20 October 2013.

References

Crops {{agriculture-stub