Glossary
Re-peek
In one line: Peeking the same angle again right after the first time.
What it means
Re-peeking means going back to look at the same angle after first contact. Sometimes it is right: you hit the enemy and they are low, or they do not expect you to come back at once. Much more often it is a mistake, because the enemy knows exactly where you will appear.
The practical rule: after a peek, unless you have a clear advantage, change angles or wait. If you do come back, do it from a different spot or with an ability that changes the duel.
An example
You peek, shoot, and the enemy ducks back hurt. Now they wait with their crosshair exactly where you came out. Instead of swinging there again, you move two meters and catch them from a slightly different angle.