A web forum participant, usually using a blog, news website, or social networking platform, who contributes solely, usually without merit, basis in fact or any discretion therein, to harvest as many "thumbs-up" (or Like) responses as possible from other forum users.

The polar opposite of a Troll.

A portmanteau of carpe diem, a Latin phrase that means “Seize the Day!” and DM, which stands for Direct Messages. This word means seizing the day via DMs.