n. esp. Brit. sl. a silly or foolish person.
Etymology: orig. dial.: perh. f. TWIT(2)
2.
v.tr. (twitted, twitting) reproach or taunt, usu. good-humouredly.
Etymology: 16th-c. twite f. atwite f. OE aeligtwitan reproach with f. aeligt at + witan blame
Useful english dictionary. 2012.