Meaning & Story
An initialism used as a stand-alone name — most likely short for a personal name combination with initials L and J — carrying an informal, affectionate quality.
Lj is the kind of name that gets bestowed in the moment: someone looked at their new puppy and the right initials just emerged, warm and specific. It has a casual intimacy to it that more formal names can't quite replicate — it sounds like a nickname that stuck, which is the best kind of name a pet can have.