What is the meaning of pick-me in genz slang?

The meaing of the word pick-me in genz slang means the following:

• A term for someone who seeks validation by trying to stand out, often putting down others in their gender or group to gain attention.
• Used in critiques of self-serving behavior, especially on social media.

Example

She keeps saying she’s not like other girls—such a pick-me move.