The line comes from Shrek Forever After, the fourth Shrek film released in 2010, where one of Shrek and Fiona's young ogre children speaks to their father in simple baby talk. The short clip later circulated online as a standalone soundboard sound, passed around for Father's Day edits, family videos and wholesome memes rather than as a single viral trend. It has stayed in use because the phrase is instantly recognisable, easy to place over a tender moment, and short enough to work as a reaction, caption or closing beat.