a box, especially in a church, into which contributions for the poor can be dropped.
a box, esp one in a church, used for the collection of alms or money for the poor
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Last time they sent for their gold back, this time its the poor box they are robbing.
The overly serious tone and content resulted in heavy censorship, harsh criticism, and poor box-office returns.
Warner's worries about poor box-office returns proved groundless.