Defined in the dictionary as Pejorative applied to anyone with an above-average IQ and few gifts at small talk and ordinary social rituals.
I don't think you really want to be one of these.
The word itself is derived from Dr. Seuss's 1950 book "If I Ran The Zoo": "And then, just to show them, I'll sail to Ka-Troo / And Bring Back an It-Kutch, a Preep and a Proo, / A Nerkle, a Nerd, and a Seersucker, too!"
Compare Geek.
