Shtop/stop
Heard in Roscommon and Galway
A somewhat nonsensical term in reply to a statement or question. It doesn't really hold huge meaning, it just conveys shock, agreement, or usually gives the message that things are bad/worse.
Maggie: "How are you keepin'?" Finn: "Oh shtop, I'm killed out!"
Good heavens Finn, I am completely exhausted.