An energetic expression used to encourage someone to get up and take action, often used as a rallying cry or motivational phrase.
This phrase is a corruption of 'up and at them,' which was a military battle cry meaning to get up and attack the enemy. It appeared in various forms from the 1600s onward, with the contracted 'at 'em' version becoming popular in American English by the 1800s as a general expression of energetic encouragement.
The phrase has evolved from literal warfare to become one of the most cheerful expressions in English - it's hard to say 'up and at 'em' without sounding enthusiastic! It's fascinating how a military command for attacking enemies became a friendly way to motivate someone to tackle their morning routine or daily challenges.
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