The sound comes from the Green Giant, the long running mascot for the Green Giant vegetable brand, known for his deep voice and cheerful ho ho ho catchphrase in television adverts. The character has been part of American advertising for decades, often shown towering over farmland in green leaves. Short clips of the laugh were later shared on soundboards and in meme edits, where the line is detached from the adverts and used whenever something huge, green or unexpectedly jolly appears on screen.