The phrase is often used in work settings reflecting a formal decision made by an employer. Due to the economic downturn, several employees were given their cards.
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British Origin
It's a British English idiom, which may not be understood in other English-speaking countries. In the UK, he was given his cards, but in the US, he was 'fired.'
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Job Termination
It indicates the end of someone's employment, usually without their choice. The new manager started restructuring and gave half the department their cards.