Where it comes from
Ep. 58 has the stage-door/theatre moment that sets up the call and response.
How the hosts use it
Fans shout 'Quaid Army' at a host in public, and the host answers 'righteous kill'. Amy Poehler says it as a guest in Ep. 57. Haters are jokingly called 'housers' (Ep. 58).
Written by the AI from the transcripts. Every sentence was checked against them, one by one (the full episode transcript wherever a sentence names one); 8 sentences that failed the check are left out. How the check works.