Someone who insists on explaining things they know little to nothing about, usually to someone with expertise in that particular area.
Compare: mansplainer
Compare: mansplainer
"No really, women don't actually need tampons or pads. They can just hold it in."
"For f*cks sake, Dan, you're such an arrogant lesserwisser."
"For f*cks sake, Dan, you're such an arrogant lesserwisser."
by Talisanna December 30, 2021
a gender-neutral version of a mansplainer OR someone who corrects others even though they themselves lack expertise and / or the person who is corrected has more expertise in the area.
"thats not a very good answer, i wouldnt have written that if i were you."
"come on jessica, dont be such a lesserwisser."
"come on jessica, dont be such a lesserwisser."
by chopinomaniac February 5, 2021