SMH slang is a widely used internet slang that expresses disappointment, disbelief, or frustration. Popular across platforms like Twitter, TikTok, Snapchat, and Instagram, it often appears in captions, memes, and comments to react to silly mistakes, viral events, or questionable behavior. From humorous reactions like “Forgot my homework again… SMH 😂” to serious criticism of celebrity scandals, SMH has become a universal shorthand that connects digital conversations and pop culture moments worldwide.