noun
plural jerks
[count] informal :a stupid person or a person who is not well-liked or who treats other people badly
a quick pull or twist
a sudden sharp movement
verb
jerks; jerked; jerking
[+ obj] :to push, pull, or twist (something) with a quick movement
to move (something) with a sharp, quick motion [+ obj]
b always followed by an adverb, adjective, or preposition :to cause (someone) to move suddenly [+ obj]
jerk around
[phrasal verb]
jerk (someone) around chiefly US informal :to be unfair or dishonest with (someone) :to lie to or cheat (someone)
jerk off
[phrasal verb] informal + impolite of a man :masturbate