Mechanical leg

An artificial leg, drawn as a jointed metal limb. A prosthetic leg (a prosthesis) replaces a leg, or part of one, lost to amputation after an accident, diabetes or cancer, or missing from birth. Most are not robotic: a moulded socket fits over the remaining limb, a pylon stands in for the shin, and an artificial foot sits at the bottom; above-knee versions add a knee joint. Some modern knees contain microprocessors that adjust to walking speed, and sprinters run on curved carbon-fibre blades, but the emoji does not tell you which kind someone has.

It arrived in 2019 in a set of accessibility emoji that Apple proposed in 2018 after consulting disability organizations, alongside 🦾, 🦻, the wheelchairs, the guide dog and the deaf person. The proposal called it "prosthetic leg"; Unicode chose the broader name "mechanical leg" so it could also stand for a robot's or cyborg's leg. That is why it turns up in both disability and science-fiction conversations. As of 2026 most platforms draw it as a grey leg with a visible knee joint and pistons, which looks more robotic than many real prostheses do.

What does it mean when someone sends 🦿?

Usually a real prosthesis, a para-athlete, or a robot joke. People who wear a prosthesis post it the way others post 🦵: a new leg being fitted, a physio milestone, a running-blade photo, or simply as part of who they are in a bio. Amputee and limb-difference communities use it on awareness days and to cheer each other on. Around the Paralympics it means para-athletes, especially sprinters and long jumpers on blades.

In other chats it is plain machinery: robots 🤖, cyborgs, video-game characters with replaced limbs, or self-mockery after knee or hip surgery ("I'm bionic now 🦿"). Some gym-goers borrow it for legs that feel like metal after a hard workout.

The tone depends on whose leg it is. Someone joking about their own prosthesis is fine; tagging another person's leg as a "robot leg" with this emoji can land as mockery unless they started the joke. When you talk about an amputee's leg, use their words.