The melting face emoji shows a smile that is sliding downward as if it is melting. People use it for heat, embarrassment, stress, awkwardness, exhaustion, or emotional overload.
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Common meanings
It can mean "I am too hot," "this is awkward," "I am overwhelmed," or "I am trying to smile through this." It often has a dramatic but humorous tone.
How it compares
It is softer than an angry emoji and more expressive than a plain sad face. It works well when the situation is uncomfortable but still a little funny.
For literal temperature, the hot face emoji or cold face emoji may be more direct.