e cleanser
A person who acts like they’re better than you just because they know one thing.
He corrected my spelling and then said 'you’re so bad at spelling I think you should just stop trying.'
She said 'you didn’t even write the whole sentence' and then started spelling it for me like I was five.
He saw me write 'ate' instead of 'eight' and said 'you’re so dumb you can’t even tell the difference between a word and a number.'