rent free

💡 Meaning

Staying in your mind without being invited — that thought or person isn't paying rent but they're living there.

무언가가 내 머릿속에서 떠나지 않고 공짜로 머물고 있다는 뜻이에요. '그 사람 생각이 계속 나'를 재치 있게 표현한 말이에요.

🧠 Memory Hook

They're a squatter in your mind — taking up mental real estate without contributing anything.