knee jerk reaction
The phrase "knee jerk reaction" refers to an immediate and instinctive response to a situation or stimulus, typically without careful thought or consideration. It implies a quick, automatic, and often impulsive reaction that happens without deliberation. Just as the knee reflexively jerks in response to certain stimuli without conscious control, a knee jerk reaction is similarly impulsive and reflexive.
An idiom is a phrase or expression that usually presents a figurative, non-literal meaning attached to the phrase. Does that sound fun? It can be!
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