J‑boy — a poker slang term used to refer to the Jack card (often in casual or humorous contexts).
Explanation. The term “J‑boy” stems from using the letter “J” for Jack and “boy” as a playful nickname for face cards, especially in informal poker settings. While not widely used in formal poker vocabulary, it can appear in casual conversation—e.g. “I was dealt a pair of J‑boys” means two Jacks. It’s another one of many nicknames for the Jack, alongside terms like “Fishhook,” “Jake,” or simply “Jack”.