crapehanger

crape·hang·er

 (krāp′hăng′gər)
n.
A morose, gloomy, or pessimistic person.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

crapehanger

or

crepehanger

n
informal US a gloomy person; a pessimist
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

crape•hang•er

or crepe•hang•er

(ˈkreɪpˌhæŋ ər)

n.
a pessimist.
[1915–20, Amer.]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.