This word was
accidentally created circa 1973 by a group of high-school students at a northern Indiana school.
The original spelling of the word was 'D-W-E-E-D' and was meant to be a shortened form of dickweed. By using the word dweed, they were able to call their classmates
derogatory terms in front of teachers with no repercussions.
Because only a select group of students knew what was actually being said, the word was mispronounced in abundance, causing the word to be spoken as dweeb.