The Brief: The raised fist emoji expresses moments of accomplishment or camaraderie.

DEEP DIVE
The raised fist emoji ✊ is often used to show solidarity, to symbolize Black Power, and/or to represent revolutionary movements. This emoji can also be used to show support or celebrate an achievement. This is similar to, but not to be confused with the Oncoming Fist Emoji.
Activistas LGBT
Afro-costarricenses ✊🏿✊🏾🌈
Shurry, Diversidad Caribe pic.twitter.com/PgI3OfnTqH— Maggie (@maggiewill) May 26, 2020
a quick sketch of the king😔✊ pic.twitter.com/UvP183lw56
— ia || kamilla⁷ (@breadjinius) May 25, 2020