What does the idiom/expression mean?

At her new school, Isabella shared a humorous story to break the ice and ease the initial awkwardness with her unfamiliar classmates.

What does "break the ice" mean in this sentence?

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Despite his initial hesitation, Daniel decided to go with the flow and spontaneously joined his friends on an unplanned weekend adventure.

What does "go with the flow" mean in this sentence?

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He was caught between a rock and a hard place when deciding whether to attend his friend’s party or study for the big exam.

What does "caught between a rock and a hard place" mean in this sentence?

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After receiving an unexpected scholarship offer, Ethan was on cloud nine, overwhelmed with excitement and pride.

What does "on cloud nine" mean in this sentence?

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As soon as they sat down for lunch, Lily eagerly leaned in to spill the tea about the unfolding drama in their friend group.

What does "spill the tea" mean in this sentence?

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Feeling noticeably under the weather, Sophia reluctantly decided to stay home and rest instead of attending the highly anticipated school event.

What does "under the weather" mean in this sentence?

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In an effort to complete his complex science project on time, Noah found himself burning the midnight oil for several nights in a row.

What does "burning the midnight oil" mean in this sentence?

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By joining three clubs while maintaining a part-time job, she quickly realized she had bitten off more than she could chew.

What does "biting off more than she could chew" mean in this sentence?

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After witnessing the viral success of the latest fashion trend, Mia couldn’t resist the urge to jump on the bandwagon and revamp her wardrobe.

What does "jump on the bandwagon" mean in this sentence?

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By enrolling in advanced classes and joining multiple extracurricular clubs, Liam quickly realized he had bitten off more than he could chew.

What does "bite off more than he could chew" mean in this sentence?

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CCSS.L.4.5B

CCSS.L.5.5B