The line comes from Glee, the Fox musical comedy-drama that ran from 2009 to 2015, where Jane Lynch played cheerleading coach Sue Sylvester. Sue became the show's breakout antagonist thanks to her cutting monologues and over-the-top schemes against the glee club. This particular threat circulated widely as a reaction clip on social media, detached from its episode and reused whenever someone wanted a camp, villainous way to call a situation toxic, dramatic or deliberately hostile.