1)A person who stalks individuals directly next to or near where their locker happens to be situated.
2)A creeper who corners an unsuspecting person innocently trying to retrieve books and other necessities out of their locker. The said person cannot leave until they get their books together and secure their lock. This gives the locker stalker ample time to start a conversation and give the unfortunate victim a hug. During this interaction the victim is trying to figure out if they have ever even met the locker stalker.

Got the covid-19 vaccine

an unattractive person who waits by your locker,follows, or waits to talk to you during school