jerk
noun
\ ˈjərk
\
\
Definition of jerk
(Entry 1 of 3)
1a
: an annoyingly stupid or foolish person
was acting like a jerk
b
: an unlikable person
especially
: one who is cruel, rude, or small-minded
a selfish jerk
2
: a single quick motion of short duration
a sudden jerk gave the handle a jerk
3a
: jolting, bouncing, or thrusting motions
b
: a tendency to produce spasmodic motions
4a
: an involuntary spasmodic muscular movement due to reflex action
b
jerks plural
: involuntary twitchings due to nervous excitement
5
: the pushing of a weight from shoulder height to a position overhead : the second phase of the clean and jerk in weight lifting