Shiver my timbers

Pray, Sir, is this the way to Stretchit?
"Shiver my top-sails, my Laſs, if I know a better way."

"Shiver me timbers" (or "shiver my timbers" in Standard English) is an exclamation in the form of a mock oath usually attributed to the speech of pirates in works of fiction. It is employed as a literary device by authors to express shock, surprise, or annoyance. The phrase is based on real nautical slang and is a reference to the timbers, which are the wooden support frames of a sailing ship. In heavy seas, ships would be lifted up and pounded down so hard as to "shiver" the timbers, startling the sailors. Such an exclamation was meant to convey a feeling of fear and awe, similar to, "Well, blow me down!", or, "May God strike me alive and well". Since on the high seas the ship was the sailors' 'world', it may also be interpreted as an exclamation for "shake my world" as the subject being referred to could be, or may be considered a potentially 'world shaking' event.