The flexed biceps emoji represents strength, effort, confidence, fitness, motivation, or support. It can be literal, as in working out, or symbolic, as in staying strong.
💪
Common uses
People use it after gym posts, hard work, encouragement, team wins, personal goals, recovery, and messages like "you got this."
Supportive meaning
It does not always mean physical strength. It can also mean emotional strength, determination, or respect for someone's effort.
For praise rather than effort, people may use clapping hands, fire, or hundred points.