drop (one's) drawers
To remove one's pants or underwear. I was so muddy after working in the garden that I dropped my drawers as soon as I got into the house.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
drop one's drawers
to lower one's pant or underpants. The boys dropped their drawers and jumped in the creek.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.