Lucky comes from Napoleon Dynamite, the 2004 American comedy film starring Jon Heder as the awkward title character. The brief line became one of many quotable moments that helped the low budget film grow into a cult favorite through home video, quoting among friends, and early internet sharing. Short clips of the delivery later circulated on soundboards and social media as a ready made jealous reaction. Its lasting appeal is the contrast between the ordinary word and the resentful tone, letting a single clip stand in for a whole envious response in chats.