Informal A sudden shock, revelation, or turn of events. (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 "zinger" in a sentence
"Relatively newbie Miggs makes it look easy with this zinger from the Deception trailer thread: Oooooo!"
"All I ask [here's the zinger] is that you send to my non-denominational non-profit organization, a love-faith offering to help cover the expense of mailing my cd to you."
"Going into the film knowing that, the zinger is less of a surprise when it happens."