What is The Canary?
1.
Someone that you let go first to make sure it is safe. Used sometimes by video-gamers. For instance, when the canary gets killed, springs the trap, takes the fall etc, it will tell you where the dangers/enemies are. Origin: coal miners used to keep a canary in the mine, when it died they knew there was poison gas.
Looks dangerous in there, let the canary go first.
See
