Someone who speaks of something they know nothing about as if they were a Jedi Master.

He uses the Mexican Force, it's the force but with more tacos and Tequila

When you're off by 1.
Common in programming when dealing with indexes since they start at 0.

When a man gives his partner a facial while standing on a raised platform and announces that he has "the high ground"

the best jedi in all of internet history

When a pupil becomes stronger than their master, realises this, and ousts or overruns their former mentor. In reference to when Anakin Skywalker kills Obi Wan Kenobi in Star Wars.