Rock

A single grey rock: the emoji for stone, boulders and anything rocky. On most phones it is drawn as a lumpy grey stone with a few cracks or facets, no face, no sparkle, though details vary by platform. It sits in the emoji list beside 🧱 brick and 🪵 wood as a raw building material, and it arrived in 2020 together with wood and the hut.

Most of its life is literal. Hikers and climbers tag rocky trails and bouldering sessions with it, beachcombers and rock collectors use it for their finds, gardeners for rockeries and stepping stones, teachers and students for geology, fossils and volcanoes. Parents use it for the pocketful of pebbles a child brings home.

The second life is wordplay, mostly in English, where "rock" is a compliment, a measure of reliability and a low point all at once: "you rock 🪨", "rock solid 🪨", "hit rock bottom 🪨". Fans of the actor and wrestler Dwayne "The Rock" Johnson can use it as a nod to his nickname. And it is a handy way to spell out the first move of rock-paper-scissors: 🪨📄✂️. Before 2020 the game was played in emoji with the fist ✊, which still works.

What does it mean when someone sends you 🪨?

Usually a real rock; on its own, "solid", "heavy" or "no comment". Next to a photo or a plan it is scenery: a hike, a climb, a beach. After a thank-you or a "you" it is praise, the "you rock" pun. With a sad message it is "rock bottom" or the weight of a bad week.

A lone 🪨 answer is the tricky one. It is the emoji equivalent of a stone face: "noted", "I'm unmoved", or a dry joke about being as solid, or as thick, as a rock. Only the phrase "dumb as a rock" makes it an insult; by itself it is deadpan rather than hostile. It also makes a natural image for the Sisyphus joke: in Greek myth Sisyphus was condemned to push a boulder uphill forever, and people caption laundry, inbox and gym routines with 🪨 to say the task never ends.