one size fits all

of broad or universal application (from a label on clothing products that indicates they can accommodate the size of any wearer)

War is not a one size fits all solution.

by Light Joker October 19, 2006

one size fits all

(Phrase) With only a tiny minoritory of exceptions, everyone should be happy with the decision.

Hitler commiting suicide was a one size fits all action

by Gumba Gumba May 15, 2004

one size fits all

A silly marketing term used to describe an item of clothing that doesn't fit anyone.

John: "Ugh, I bought this shirt from the mall yesterday and it doesn't fit."
Mary: "Well, obviously. It's one size fits all."

by bill of swift April 27, 2016

one fits size all

A horribly botched version of “one size fits all,” usually said by someone trying to sound confident while absolutely not knowing what they’re talking about.

Usage:
Describes anything that is claimed to work for everyone but clearly doesn’t — from T-shirts to tech solutions to your coworker’s “universal” Excel macro that crashes on every PC except his.

“The IT guy said his script works for every machine… a real ‘one fits size all’ solution. It bricked half the office.”

by barry_tje November 28, 2025