A more thorough explanation:

Definition: QD is an abbreviation of the Latin phrase "quasi dicat," which means "as if he should say." It is used to indicate that the following statement is a paraphrase or interpretation of what someone else has said. Example: John said, "I'm not really sure if I want to go to the party tonight." QD, he's hesitant about attending the party. Explanation: In this example, the use of QD indicates that the second statement is a rephrasing of what John said. It suggests that the speaker is not quoting John directly, but rather summarizing his words or interpreting his meaning.