别碰我刘大爷
        
            [bié pèng wŏ liú dà yé]
        
        
            This nickname is humorous and conveys a tough, no-nonsense attitude. 'Liu Daye' can be understood as 'Grandpa Liu', a playful way to assert dominance or toughness. It translates loosely to 'Leave me alone, I'm Old Grandpa Liu'.