Say nawthin' 'less sumptin's said

exp.

Heard in Sligo

Don't mention something unless someone else brings it up first.

In use

Here, I don't that(story) gettin' 'round, so say nawthin' 'less sumptin's said, yeah?

Posh English

See here, I do not wish that tale circulating, therefore say nothing unless the subject is raised by another.