What is the meaning of go touch grass? - Question about English (US)

Definition of go touch grass "touch grass" is a recent slang used online to mean "go outside" or "get off the internet/computer". It is said to someone when they spend too much time online, usually social media or video games. "You've been ranting about the new Star Wars movie all week on Twitter. Go touch grass, dude. Do something more productive with your time."|It's the same as saying "you sound ridiculous" or "come back to reality". Like you would say "정신차려!". go touch grass = go outside and touch something real because you sound delusional

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