[Idiom] Two and two make five

[oldjimbo]

I have searched site Idioms, but haven't found this. Alternatively, is there another phrase or literary device, that means 'making or jumping to false conclusions, based on no, or scanty evidence'.

Any help would be most welcome.

 

[BobK]

I wouldn't say this is an idiom. In a slightly different form it is used to refer to people coming to a mistaken conclusion - 'they have put two and two together and made five'.

An idiom that refers to misapprehension is 'to get the wrong end of the stick' - it doesn't refer to scanty evidence, although the scantier the evidence the easier it is to get the wrong end of the stick.

b

 

[corum]

Barking up the wrong tree?