Raised Fist emoji is one of the hand gesture emojis, which look like a fist, pointing up. This gesture in real life is associated with protests and support of someone or something — in these meanings it is used online as well. Commonly, it is followed by emotional smiley, which expresses the attitude more vividly — for example, by 😡 Pouting Face emoji to convey protest. It is also often followed by friendly or neutral-looking smileys when it means support. And at last, sometimes it is used as something like the intensifier of some statement. (Source: Emojis.wiki, Fair use)