The loudly crying face emoji shows heavy tears and an open mouth. It can mean real sadness, emotional overwhelm, dramatic frustration, or even laughing so hard that someone says they are crying.
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Two common tones
In serious messages, it may mean grief, disappointment, or hurt. In casual online use, it can be exaggerated, like "this is so funny" or "this is too cute."
How to read it
Look at the sentence before it. If the topic is painful, take it seriously. If it follows a meme or joke, it may be playful exaggeration.
For milder sadness, use a sad face emoji. For heartbreak, use the broken heart emoji or the text emoticon </3.