Meaning of screen door on a submarine | Babel Free

Definitions

Something that is useless or absurd.

idiomatic

Examples

“But realists put the final number of jobs saved through privatisation at no more than 800. "It's about as useful to us as a screen door on a submarine," says an angry mayor's office in Sacramento .”

“I doubt anybody would give you static about unloaded and stored long guns anywhere in U.S. waters, and few places would about handguns (although unloaded guns are as useful as a screen door on a submarine).””

“If you don't know what security vulnerabilities look like at the code level, then having the source code is just as useful as a screen door on a submarine from a security perspective.”

CEFR level