"The Argus" Newspaper Archive: November 10, 1839 - Page 9 records the use in the news event as: "As for nine French men-of-war are laying along side us jist now, and overhauling our rigging and tactics, splinter my timbers into shivers if I don't think they are all buccaneers..." would indicate the meaning of "shivers" as the breaking into wedges, small pieces or slivers. Alternatively the word "slivers" itself (meaning a small, thin, narrow piece of something cut or split off a larger piece, which also defines a "splinter"), may be the word "shivers" expresses. The exact phrase is used earlier on the same page "Here's a breeze in a bumboat! shiver my timbers and top-lights, what will our Majesty's loblolly-boys say...". While the exact meaning may be different, the use was still that of an exclamation.