The greeting is associated with Shrek, the gruff but good-hearted ogre at the centre of DreamWorks' animated Shrek films, which began in 2001 and became a lasting source of internet humour. Short clips of his voice have circulated for years on soundboards and in short-form videos, where the familiar hello works as an instant, light-hearted reaction. Its staying power comes from that recognition: even without any picture, listeners know who is speaking and expect something funny to follow.