Learn in the textbookDistortions of the Information Environment and Countermeasure Technologies
DefinitionA digital tattoo (デジタルタトゥー) is a term that compares to a tattoo the way posts and images published online spread through copying and reposting and keep surviving, hard to erase completely.
ExplanationInformation that lingers can harm the person years later, in school admissions, job hunting, or relationships. So before posting, review the content as something you will not be able to take back.
AnalogyA tattoo, once inked, is hard to remove no matter how much you regret it. A photo posted on a whim can stay around just as long.
Memory hookA tattoo is ink set into the skin. The fact that it is hard to remove once applied is the clue in the name.