to powerlock someone is when u take their lock and put it on their locker backwards so they have to bed down and put in their combo in a more difficult way. usually friends will powerlock each other but sometimes its just random people who see your lock open

Powerlock, as in comic, is an comic made by the new author arthur leão kurtz.
This webcomic is based on another webcomic, homestuck.
(PS: it can be found on the site MSPFA)