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screen door on a submarine

screen door on a submarine

9.5
Something completely useless because it cannot work where it is used
  • idiom
  • Informal
translation icon : tan útil como una puerta de malla en un submarino
  • Her efforts to keep secrets in that family were as useful as a screen door on a submarine.

Examples

  • Trying to fix that problem with a quick patch is like putting a screen door on a submarine.

  • Investing in that project is like installing a screen door on a submarine.

  • Debating with him about the rules was a screen door on a submarine.

  • This plan is just a screen door on a submarine.

  • Debating with him about the rules was a screen door on a submarine.

  • Her efforts to keep secrets in that family were as useful as a screen door on a submarine.

  • Trying to fix that problem with a quick patch is like putting a screen door on a submarine.

Synonyms

dud
vsscreen door on a submarine
  • Informal
14 4.7

Something that fails to work or please people

stresses uselessness because it is fundamentally unsuited rather than merely failed
total waste of time
vsscreen door on a submarine
4 3.9

An activity that uses your time but does not help you

highlights fundamental unsuitability rather than mere unproductiveness
as useless as tits on a boar hog
vsscreen door on a submarine
  • Offensive
1 9.9

Something that has no real purpose or value

means the same but uses neutral wording instead of coarse humour
as useful as a screen door on a submarine
vsscreen door on a submarine
  • Informal
9.9

Having no real use

is the same idea but given as a brief label not a simile

Antonyms

947 1.0

Helps you do practical tasks or solve a problem

How Useful

measure
  • Formal
823 3.8
screen door on a submarine
  • Informal
9.5
gesture
245 3.2

Surface Forms

Morphology

screen + door + on + a + submarine

The metaphor is directly inferable from the constituents: a 'screen door' (a mesh door) placed 'on' a 'submarine' (a vessel that operates underwater) would be pointless or counterproductive because it would let water in. This obvious real-world incompatibility makes the expression's meaning ('useless' or 'unsuited to its context') immediately clear to learners who know the component words.

Etymology

Screen door on a submarine is a saying that gives a clear, silly image: a screen door would let water into a submarine, so it would not work at all. That's why people use it to describe something 'useless or pointless'.