From Longman Dictionary of Contemporary Englishtwittwit /twɪt/ noun [countable] informalSTUPID/NOT SENSIBLE a person who you think is stupid or silly
Examples from the Corpus
twit• A lot of the arts fellows think Humphrey's a bit of a twit and tend to talk down to him.• Don't get them mixed up or everyone else on the list will think you're a twit.• My own professional credibility would be lost in an instant if I proposed a boring twit.• You see him as an insignificant twit.• Public school twits, she thought, an old prejudice welling up in her.• And when that time does come, young twits are going to sneer at you, incredible as that may seem.Origin twit (1900-2000) Perhaps from twat 