A “merry widow” traditionally refers to a strapless corset named after a famous operetta “The Merry Widow, 1905.” The corset style was simple and elegant compared to more decorated fashion. Cue making companies borrowed the term to describe cues that were stripped down no points, no inlays, just straightforward and beautiful. Players caught on and began calling any plain cue with a full length forearm of a single wood a merry widow. The name stuck because it conveyed simplicity, elegance, and a bit of style without ornamentation like the corset it was named after.
The phrase “Sneaky Pete” goes back to old American slang. A “Sneaky Pete” was a cheap, bottom shelf bottle of wine or liquor, sold under the counter… looked harmless but packed a punch. Hustlers borrowed the term because the cue looked harmless like a house cue but hit like a top end custom. By the 60s–70s, the name stuck in pool rooms, a cue that “sneaks up” on people.