Jerk

cabrón

(unlikable person)

cretino

(unlikable person)

culeado

(unlikable person)

espasmo

(sudden, uncontrolled movement)

estremecimiento

(sudden, uncontrolled movement)

imbécil

(unlikable person)

repullo

(sudden, uncontrolled movement)

sacudida

(quick, often unpleasant tug or shake)

soplagaitas

(unlikable person)

tic

(sudden, uncontrolled movement)

tipejo

(unlikable person)

tirón

(quick, often unpleasant tug or shake)

tirón

(physics: rate of change in acceleration)

tumbo

(quick, often unpleasant tug or shake)

jalonear

(transitive: to give a quick, often unpleasant tug or shake)

tironear

(transitive: to give a quick, often unpleasant tug or shake)