English Reference
Idiom idiom

weak sister

Meaning

A person who is cowardly or indecisive.

Meaning adapted from Wiktionary, available under CC BY-SA 4.0.

Examples
SIMPLE

“He is a weak sister when it comes to making tough choices.”

CONTEXTUAL

“The team lost the game because their captain acted like a weak sister during the final minutes.”

COMPLEX

“Despite his loud promises of loyalty, he proved to be a weak sister when the crisis demanded true courage.”

Anchors to
Related idioms4entries
  1. 01

    bring it weak

    To fail to accomplish an accomplishable task or to make an attempt at less than maximum effort; to "half-ass" or "fake the funk".

  2. 02

    skin

    [Cockney slang]sister

  3. 03

    weak tea

    Weak or feeble arguments, efforts, or proposals.

  4. 04

    weaker vessel

    A woman; women collectively.

Last updated August 10, 2026