What does Lianmai dd mean?

DD in network language means to talk to me in private. For example, if someone wants to sell something, he needs DD, which means you can talk to him in private.

Network language refers to the language produced and applied to the network. Network language is a language produced from the network or applied to network communication, including Chinese and English letters, punctuation marks, symbols, pinyin, icons (pictures) and characters. This combination often shows special significance in specific network media communication.

Network language source

The emergence and spread of this language mainly depends on the network crowd and a large number of mobile phone users. Internet languages such as "dinosaur, girl, hap less, frog, embarrassed man, Dongdong" often appear in chat rooms. In BBS, words like "next door, upstairs, downstairs, landlord, diving, irrigation" often pop up from their posts.

There are rich and vivid emoticons in QQ chat, such as the wave of "Goodbye, a steaming cup of tea". There are more and more dialect words used in mobile phone short messages, such as "Leng Song" (in the northwest dialect, the sound of lěng sóng means "do your best"), and so on.