second-story man
sec·ond-sto·ry man
(sĕk′ənd-stôr′ē)n. Informal
A burglar adept at entering through upstairs windows.
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.
sec′ond-sto′ry man`
n.
a burglar who enters through an upstairs window.
[1900–05]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.