☢️ is the radioactive warning sign, used for nuclear topics or as a strong warning that something is dangerous or toxic. In casual chats it often jokes that a person, food or situation is "toxic" or too much. Apple's artwork shows a white three-bladed trefoil on an orange circle.

U+2622 U+FE0F
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The literal use covers nuclear power, radiation, science and safety. The joking use is very common: calling an ex or a friend group ☢️ means toxic, a messy room or smelly shoes are a "hazard zone", and very spicy food can be ☢️ level hot. The tone is usually playful exaggeration. It is stronger than ⚠️, which is a general caution, and close to ☣️ biohazard, which is used in a similar joking way.
Calling someone or a relationship ☢️ usually means it is toxic or unhealthy. Between friends it is often half joking.
It is used to warn about something risky, gross or extreme, such as a bad smell, a dangerous dish or a messy situation.
People use it to joke that a topic is so sensitive that nobody should touch it.
This chilli sauce is ☢️ level
Stay away from that group chat, it's ☢️
Brother's room is a hazard zone ☢️💀
Visited the nuclear plant on our school trip ☢️
| ☢️ vs ☣️ | ☣️ is the biohazard sign for germs and biological danger, while ☢️ is for radiation, though both are used for "toxic" jokes. |
|---|---|
| ☢️ vs ⚠️ | ⚠️ is a general caution sign, while ☢️ suggests something far more extreme. |
| Name | radioactive |
|---|---|
| Codepoints | U+2622 U+FE0F |
| Category | Symbols |
| Keywords | sign |
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☢️ is the radioactive warning sign, used for nuclear topics or as a strong warning that something is dangerous or toxic. In casual chats it often jokes that a person, food or situation is "toxic" or too much. Apple's artwork shows a white three-bladed trefoil on an orange circle.
It usually means she thinks something or someone is toxic, extreme or a bad idea. It is not a flirty emoji, though she may use it jokingly about your cooking or your jokes.
☢️ is the radiation symbol and ☣️ is the biohazard symbol. In casual chats both mean toxic or dangerous, and people often swap them.
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