Definition of "muggins" [mug•gins]

• A fool or idiot (especially as an ironic way of referring to oneself). (noun)
• The act of stealing another player's points because they either mis-pegged or counted up incorrectly. House rules specify whether the mugginser gets the mugginsee's points or whether those points are simply lost. (noun)

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• "Taking pictures of you and all your fancy clothes, parties, and people won't make you happy. Well, it might for the moment but it won't last. Your friends like you because of who you are, not what you have. If they don't they aren't good friends anyway. Plus it makes you look like a cotton headed ninny muggins."
• "When your BFF calls you a cotton headed ninny muggins on FB, resist the urge to smack back. Step away from your mobile device and take 5 deep breaths."
• "I was told afterwards he'd been trying to sell the place for months, but all the locals found out they would be buying trouble and left it alone for some muggins like me straight out of the army and still wet behind the ears to come along and jump in with my big feet."