One timer

In ice hockey, a one-timer is a shot that occurs when a player meets a teammate's pass with an immediate slapshot, without any attempt to control the puck on their stick.

[1] An effective one-timer requires precise timing on the part of both players involved, especially the shooter.

The effectiveness of the one-timer comes from three things: Greater angle, change of direction and/or speed increases the chances of the puck going into the net.

Lesser angle, change of direction and/or speed decreases the chance of the puck going into the net.

Either way, the one-timer enjoys a greater success rate than a one-on-one shot between shooter and goalie.