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Definition of 'Mariner_Shores':
The slang term that describes a person who is too proud and conceited to acknowledge their limitations. It refers to someone who perceives themselves as superior to others, often with exaggerated self-importance. Example Sentence: "John was so proud of himself after finishing his project on time. He thought he knew everything about technology and innovation, but when he looked at the mariner-shores chart on his desk, he realized he had missed a lot."