현타 /hyeon-ta/
Reality hit / Post-hype crash
Short for 현실 타격 — a sudden blow of reality after excitement, delusion, or fun fades. The feeling when you snap back to your actual life.
Examples
여행 끝나고 현타 왔어
Reality hit hard after the trip ended
콘서트 끝나고 현타 극심해
The post-concert reality crash is brutal