Equivalent of "A poco"

Question

I saw: "¿A poco no crees en Dios? and it seemed to express incredulity, as in Seriously? You really don't believe in God? I've also heard "a poco" on Mexican radio and it seemed to mean "probably" or "maybe" but I can't give more context right now, sorry. (Help!)

Answer 1

Julian is correct, but "a poco" has other meanings in different contexts, some of which you may have heard on the radio. For example, "A poco que. . ." usually means "as soon as. . .", but it can also mean a little bit or a little while, depending on context.

Answer 2

I've also heard "a poco" on Mexican radio and it seemed to mean "probably" or "maybe"

No, this is not the meaning.

"¿A poco no crees en Dios? and it seemed to express incredulity, as in Seriously? You really don't believe in God?

This is the correct interpretation.