Jerky
WordNet
adjective
(1) Having or revealing stupidity
"Ridiculous anserine behavior"
"A dopey answer"
"A dopey kid"
"Some fool idea about rewriting authors' books"
(2) Marked by abrupt transitions
"Choppy prose"
(3) Not having a steady rhythm
"An arrhythmic heartbeat"
noun
(4) Meat (especially beef) cut in strips and dried in the sun