Not hold water phrase
Said when an excuse, a statement etc. does not seem to be true or reasonable
Scientists proved that these theories didn't hold water.
Her argument simply doesn't hold water.
Your excuse just does not hold water.
1. That's a bit more expensive than expected.
2. That's rather unfair or untrue.
If you say you take something with a "grain of salt", it means you do not believe completely in something that people told you.
1. (n) Nonsense
2. (v) To say something stupid, silly or wrong.
The graphic depicts a container with holes in it, which may be seen as a metaphor for this phrase. A stance or argument has "holes" (errors or gaps in reasoning).
In a bad situation, the worst possible outcome will always happen
That one subject i didnt learn was put on the test. Bread always falls on the buttered side i guest.