pebblingEtymologyNoun sense 3 is referencing the courtship displays of Adélie penguins and Gentoo penguins, who present smooth pebbles used for nest building to their partners. Popularized on social media in 2024.nounThe placing of pebbles in any of several board games.A way of graining leather with a ribbed or roughened appearance.In neurodivergent people, the act of offering small, meaningful gifts or gestures to express affection and establish social bonds.“penguin pebbling”