Real-life military lingo
Colonel James Rhodes was a pilot and will always be a pilot at heart. Even after joining the Avengers and War Machine, he hasn’t forgotten his history with the US Air Force. In Avengers: Endgame, we can hear War Machine repeatedly calling out “Canopy” while trapped underneath the rubble.
Don’t feel guilty if you don’t know what Canopy means in military terms. Even we had to Google it to make sure we weren’t hearing it wrong. Apparently, Canopy is the military’s way of saying eject. At least, that’s what pilots say when their aircrafts are malfunctioning and need to abandon ship.