a lively, booming, expanding, or very profitable business.
Origin of land-office business
An Americanism dating back to 1830–40
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for land-office business
US and Canadian informal a booming or thriving business
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Idioms and Phrases with land-office business
A thriving, expanding, or very profitable concern or volume of trade. For example, After the storm they did a land-office business in snow shovels and rock salt. This term, dating from the 1830s, alludes to the throng of applicants to government land offices through which Western lands were sold. It has been used for other booming business since the mid-1800s.
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.