jerkish--prophetes.ai

jerkish, a. rare.
  (ˈdʒɜːkɪʃ)
  [f. jerk n.¹ + -ish.]
  Characterized by jerks; jerky.

1885 Manch. Exam. 18 Mar. 5/6 ‘No’, said Lord Edmond, in his jerkish manner, ‘the Government have no information’.

Oxford English Dictionary