No pegan ni con cola

No pegan ni con cola
 

In English?
Meaning : Two things or people don´t match at all

Perhaps:

They are complete opposites.
They couldn't be more different.
They are as different as night and day.

They're like chalk and cheese.

¿Qué quiere decir pegan en inglés por favor?

pegan means they stick (the verb pegar)

That is what I thought, but I still don't understand the logic of the dicho.:confused::thinking:

Cola no sólo significa tail, también es sinónimo de pegamento.

@Brute: adding to David's explanation: these people cannot get together by any means. They repel each other.

Por aquí también se usa "no tragar a alguien (ni con agua)".

Thanks. The penny has dropped.

No pegan ni con cola means for example, the boy is poor and not educated , however the girl is rich and highly-educated, the topics of conversation are different. They don´t pegan ni con cola ( glue) but not nessesarily repel each other.
The same with tiles in a kitchen, or clothes when they don´t match.