wrong side up

adverb

: in such a way that the upper and the lower parts are reversed in position : upside down

Lay the original upholstery pieces wrong side up on the wrong side of the new fabric …

—Kaisha Langton

Others in relationships are discovering new, … baffling habits that their partners partake in …. Will a bunch of people break up over putting the toilet paper on the roll, wrong side up?

—Harron Walker

wrong-side-up adjective

… waved his flag upside-down, seemingly not realizing his flag was wrong-side-up.

—Alejandro Ramirez

Examples of wrong side up in a Sentence

Recent Examples on the Web

According to the researchers, earlier anatomical interpretations positioned the animal wrong side up. —Mindy Weisberger, CNN, 24 June 2024

Word History

First Known Use

1779, in the meaning defined above