Seen on blogs, this is grim air-traffic-controller speak for a head-on collision. Midair passenger exchanges are quickly followed by "aluminum rain".
Controller 1: Man, THAT was a close call!
Controller 2: Yeah - we almost had a midair passenger exchange!
Controller 2: Yeah - we almost had a midair passenger exchange!
by JRob January 1, 2012
Get the midair passenger exchangemug.