Pants sagging below the waistline. Can also be used as a term of address for someone experiencing this. I forgot to pack my belt, so I've got a serious case of droopy drawers today. Hey, droopy drawers! Pull up your pants before the headmaster sees you!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
n. someone—usually a child—whose pants are falling down. (Also a term of address.) Hey, droopy-drawers, pull up your pants.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.