A person held in contempt, esp. one ridiculed as studious, puny, or unfashionable; a fool.
an insignificant, foolish, or socially inept person; a person who is boringly conventional or studious.Now also: spec. a person who pursues an unfashionable or highly technical interest with obsessive or exclusive dedication.
Of course, Chief Justice John Roberts portrayed himself four years ago as a cautious and judicially modest dweeb.
— Fineman, Howard. The Take. Advise and Shut Up Already: Let's end confirmation hearings. Newsweek 27 July 2009: 28.
Dweeb in ChiefJustice John Roberts
If you agree that dweeb speaking is fun, put your voice around the even more playful adjective, dweeby, and you'll enjoy all of the fun of dweeb, plus bee as a closing rhyme. The OED sample sentence carries a third ee-rhyme with the proper name Reeve:
As the dweeby, narcissistic Blaine, Reeve is male-model handsome and bland —just what the role calls for; 1988 Washington Post 4 Mar. D7/2
But of what stuff is such an odd word made? For a succinct answer, we turn to the New Oxford American Dictionary (2nd Ed.), which, first of all, states that the word's earliest appearance occurred in the 1980s and, then, suggests that it is "perhaps a blend of dwarf and early 20th century feeb, "a feebleminded person' (from feeble)."
Learning that dweeb may have sprung in part from dwarf prompts a degree of PC discomfort, if we imagine the original coiner of the term to be a person who thought of dwarves as lesser humans. But we will take the more charitable view and suggest that mating dwarf with feeb was no more than a dual trope that transfers smallness in size (mass) to a perceived smallness of mental acumen in the person deemed dweeby or, with a bit of literary sniff, dweebish.
In one sense, a word made of five characters shaped into a single syllable makes for a mere mite of a word. But considering its sound effects and its likely devious origins, dweeb makes for one feisty bantam of a word.