What Does RYL Stand For?
RYL does not stand for a phrase. The three letters are a brand name coined by RAZ for a model line, not initials for words. There is no published expansion, so RYL stands for the RYL line and nothing more literal than that.
Most people asking are really asking about the letters they see on the shell, which look like RL rather than RYL. That is a design quirk, not a hidden meaning. It says nothing about what the device does.
The letters and the logo
Focus on the letters and the mystery clears up quickly. RAZ styles the RYL wordmark in a metallic, tightly drawn font, and the Y is shaped so that at a glance the stamp reads as RL. Buyers then search for RL, assume it is initials, and look for words that were never there. It is a small case of the design outrunning the spelling.
RYL is a coined brand label, chosen to name a product family, so it works like a badge rather than an acronym. Plenty of consumer names do the same thing, standing for the product rather than a sentence. The takeaway is that RYL stands for itself: the RYL line from RAZ. For how this plays out once you attach vape to the letters, the what does RYL vape stand for page covers that version of the question. Strip away the guesswork and RYL is just a brand name doing a brand name's job.
Why the RL reading spread
The RL reading spread because the logo is the first thing people notice and the last thing they double-check. Once enough shoppers typed RL vape into a search bar, the alternate spelling took on a life of its own, and now RL vape and RYL vape sit side by side as names for one product. The wrong spelling simply became a second correct search term over time.
The letters do not signal a different maker or a different device. Whether you read the shell as RYL or RL, you are looking at the RAZ RYL Classic 35K, the purse-shaped disposable rated for up to 35,000 puffs. If you want the origin of the name rather than the letters alone, the RYL vape meaning page traces where it comes from, and the what is a RYL vape page describes the device. So the letters are a badge and the RL reading is a trick of the eye, nothing deeper than that.