Meaning
A hand having its fingernails painted with a small brush. Literally it is a manicure.
It fits beauty, nail art and self-care, but online it is also slang for being sassy, unbothered or confidently fabulous while others stress. It often follows a cheeky brag. Skin-tone versions exist. Pair with โจ or ๐โโ๏ธ. Example: โThey said I couldnโt finish in time. Done early ๐ โ.