“What does the idiom “pull your socks up” mean?”

"What does the idiom “pull your socks up” mean?"
Answer: "To improve"

"The idiom “pull your socks up” means to improve one’s performance or effort. Idioms enrich language by conveying nuanced meanings. Understanding “to improve” in this context highlights the importance of idiomatic expressions in effective communication a key topic in English language and cultural studies."