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knee-jerk - 2 dictionary results

knee-jerk

[nee-jurk]
–adjective
1. of or pertaining to a knee-jerk.
2. Informal. reacting according to a certain habitual manner; unthinking: a knee-jerk liberal.

Origin:
1895–1900
knee-jerk   (nē'jûrk')
adj.   Slang
  1. Easily predictable; automatic: "quick, easy laughs and knee-jerk responses" (New York).
  2. Reacting spontaneously in the expected manner: a knee-jerk cynic.
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