twit1
n.
informal, chiefly Brit. a silly or foolish person.
Derivative
Etymology
1930s (orig. dial., in the sense ‘tale-bearer’): perh. from twit2.
twit2
v.
(twits, twitting, twitted)
informal tease, especially good-humouredly.
Etymology
OE ætwītan ‘reproach with’, from æt ‘at’ + wītan ‘to blame’.