L’s n. In the United States, a driver’s license. Editorial Note: In Australia, L’s is widespread and refers to the learner’s “L-plates” and learner’s driving license, precursors to the driver’s permit—one’s P’s—which grants full driving privileges. In the US, the learner’s permit is not issued with special plates. These citations encompass only the American L’s, which refers to the full driver’s license and likely originated independently and more recently. (source: Double-Tongued Dictionary)
Further reading
It was a dark and stormy night. So begins the long and increasingly convoluted prose of Edwards Bulwer-Lytton’s best-known novel. Today the annual Bulwer-Lytton Contest asks contestants for fanciful first sentences that are similarly...
How do social media algorithms shape the way we communicate? A new book argues that the competition for clicks is changing the way we speak and write, from the so-called “YouTube accent” to the surprising evolution of the word preppy. Also: A...
Yes “license” is hard to spell.
You realize, I hope, that this probably existed in oral slang before it was ever entered on a keyboard. So ignorance is not the source of this term.