backlash

n. rebound, recoiling; sudden backward movement or reaction

A backlash is a popular extreme negative reaction against something that has gained popularity, prominence, or influence. While sometimes a backlash represents a categorical rejection of the idea, aesthetic, product, or fad in question, it often is more reflective of a collective resentment of that thing's ubiquity in culture and media, more than its mere existence. The term is commonly applied to racial discrimination and religious discrimination committed against members of minority groups in response to an event or circumstance, such as the terrorist attacks of September 11, 2001.
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Noun
1. a movement back from an impact
(synonym) recoil, repercussion, rebound
(hypernym) movement, motion
(hyponym) bounce, bouncing
2. an adverse reaction to some political or social occurrence; "there was a backlash of intolerance"
(hypernym) reaction
(hyponym) whitelash, white backlash
(derivation) backfire
Verb
1. have an unexpected and undesired effect; "Your comments may backfire and cause you a lot of trouble"
(synonym) backfire
(hypernym) react, oppose

(n.)
The distance through which one part of connected machinery, as a wheel, piston, or screw, can be moved without moving the connected parts, resulting from looseness in fitting or from wear; also, the jarring or reflex motion caused in badly fitting machinery by irregularities in velocity or a reverse of motion.
  

Synonyms and related words:
antagonism, antipathy, backfire, backlashing, backwash, boomerang, bounce, bounce back, bound, carom, clashing, clout, collision, conflict, confutation, contradiction, contraposition, contrariety, contrecoup, counteraction, counterposition, counterworking, crankiness, crotchetiness, dissent, force, friction, impact, impress, impression, imprint, interference, kick, kick back, kickback, mark, nonconformity, opposition, opposure, oppugnance, oppugnancy, perverseness, print, reaction, rebound, rebuff, recalcitrance, recalcitration, recoil, reflex, renitency, repercussion, repugnance, repulse, resilience, resistance, response, revolt, ricochet, spring, swimming upstream