“Swear Valve” a phenomenon commonly experienced in Christian circles, whereas both parties enter a conversation/relationship with the assumption that the other adheres to strict church-appropriate conduct, until one party opens the “swear valve” with a timely “Get your stinking paws off me, you damn dirty apes!” or something to that effect.  Thus, the swear valve is effectively opened, tensions are relieved, and either party may freely throw down emphasis-driven language as they so choose…

(also see: “Alcohol Valve” at dinner parties with church friends; “Faith Valve” at work; and “Details About Life Valve” with those service employees (baristas, security guards) you might otherwise just walk by everyday for years)