Some people know it as the Cher or T-Pain effect. We call it Hard Tune.
It’s a very aggressive form of pitch correction that forces the voice to “jump” from one note to the next in an almost robotic way.
The effect works the best when confined to a set scale, where the intervals between notes are more noticeable.
To get the most out of the effect, you’ll need to adapt your singing style to help accentuate the way that your voice shifts from note to note. Try sliding between notes.