If someone says something is living rent-free in their head, they can’t stop thinking about it—whether it’s a catchy song, a funny meme, or even an argument.
What Does “Rent-Free” Mean?
It’s a way of saying something has taken up mental space without permission.
How is This Slang Used?
People use this slang playfully or sarcastically to describe thoughts they can’t shake.
The phrase is often used to tease someone overly focused on a person or event.
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