from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Slang A stupid, inept, or foolish person: "the stupid antics of America's favorite teen-age cartoon dorks” ( Joshua Mooney).
- n. Vulgar Slang The penis.
from the GNU version of the Collaborative International Dictionary of English
- n. a person who is stupid, socially inept, or ridiculous; -- always used disparagingly.
- n. the penis.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a dull stupid fatuous person
Perhaps from dork, variant of dirk.(American Heritage® Dictionary of the English Language, Fourth Edition)
US 1960s, from 1967 in sense of “silly person”, presumably from earlier use as bowdlerization of dick ("penis") in student slang, particularly Midwest. (Wiktionary)