What does SLM mean?

Other definitions of SLM:
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How to use the term
SLM:
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A brief acronym praising adequate or successful execution, generally of minor accomplishment.

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A slang exclamation expressing surprise, exasperation, or dramatic emphasis.

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An individual overly desperate for attention or affection, usually to a humiliating degree.

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A British slang term referring disparagingly to an annoying, foolish, or bothersome individual.

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