- reaction meaning
- Not an official reaction but used in comments to express admiration for someone being clever, sneaky, or stealthy in a situation.
- comment use
- Frequently used by younger Facebook users to respond to someone who pulled off something unexpectedly, or to meme-ify someone ghosting a group event.
- boomer interpretation
- Older users may interpret it literally as ninja-related, possibly associated with martial arts movies, Halloween costumes, or children's ninja toys/media.
- group use
- Used in gaming groups, anime groups, martial arts communities, and hustle-culture groups to celebrate quiet wins or skill demonstrations.