“What do you mean, is that it? I just saved his career and the CIA from ruin and he calls me a perfidious ass."
"What's perfidious mean?" Ace asked from the driver's seat.
"You deceived him and stole his girlfriend out from under his nose," Julia said to Conrad. "I think technically 'ass' is a pretty mild revilement."
"Revilement?" Ace looked at one and then the other in his rearview. "This is some kind of spy talk, isn't it? Okay, I'm down with it. Just tell me what it means.”