A woman crossing her arms in an X. ๐ โโ๏ธ says a clear, emphatic no.
Women send it to turn down an invite, refuse a bad deal or say "not happening." It sets a boundary with some sass, and it pairs well with ๐ when the refusal is final and unbothered.
Facts
Woman gesturing NO ๐ โโ๏ธ is an emoji in the people and body category, under person gesture. It became part of the emoji standard in Emoji 4.0, released in 2016. It is a sequence that joins ๐ person gesturing NO and โ๏ธ female sign. Devices that do not know the sequence show those emoji side by side. It comes in five skin tones, from light to dark. On GitHub, Slack and other apps you can type it as :ng_woman: or :no_good_woman:. People also look for it with words like โNOโ, โforbiddenโ, โgestureโ, or โhandโ.