定義: (vulgar, offensive) Abbreviation for 屌你老母, meaning "f*** your mother". Usually used in written form. 你 should pronounce "Nei" in Cantonese but sometime pronounced as "Lei" in Hong Kong, hence dllm instead of dnlm.
用法: 冇錢呀,dllm! (I have no money, f*** your mother!)
同義詞: 屌你老母