Step Brothers is a 2008 comedy about two middle-aged stepbrothers, Brennan and Dale, who are forced to share a house after their parents marry. The prison line comes from their childish rebellion against adult rules in that shared home, a theme that runs through the whole film. As a half-second sound, it spread through soundboards and short-form video as a quick reaction to feeling controlled, grounded or overworked at home. Its brevity and exaggerated delivery are why creators still reach for it instead of a longer movie quote.