A flier, insert, or enclosure, often serving as an advertisement or announcement, that is mailed with a bill or other item.(noun)
A stocking stuffer.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "stuffer" in a sentence
"Established himself as the team's best run stuffer from the defensive tackle position ..."
"A great stocking stuffer is Universal’s “Buy a Day, Get 2007 free” annual pass."
"I think they are wonderful and make great presents for any special occasion or just for a goody bag stuffer, which is what I plan on doing at my step daughters next bday party."