Undermining vibes get literal with combos like 🔪👤 for backstabbing moments or 🕳️🏚️ when things fall apart quietly. Use 🏗️🧱💥 or 🧨🏗️💥 when a project or plan collapses spectacularly, and toss in 🪓🧱🏗️ when you want to show active sabotage. These sequences slide into tense group chats or sarcastic commentary on failed plans without saying a word.