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A condition in which a grown adult exhibits the social skills of a 13-year-old with Wi-Fi access. Characterized by poor manners, childish reactions, zero accountability, and behavior that suggests they still live in their mom’s basement—rent-free and responsibility-free. A pattern of immature, foolish, or socially inept conduct typically associated with an adult who lacks independence, self-awareness, or basic etiquette. Often used to describe someone who behaves childishly, demonstrates poor manners, and shows little respect for social norms—evoking the stereotype of a grown man living in his mother’s basement. Adult behavior marked by childishness, entitlement, and a complete absence of social grace—frequently implying arrested development, poor upbringing, and an overreliance on others for basic life functioning.
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