knee-jerk reaction

Fig. an automatic or reflex reaction; an immediate reaction made without examining causes or facts. With one of his typical knee-jerk reactions, he said no immediately, citing some moral argument that no one understood.

Common Names:

Name	Pronounced	Usage
Tim	[tim]
Hare	[hɛə]
Gerold	GE-rawlt (German)	German, Ancient Germanic
Cesarina	che-sah-REE-nah	Italian
Ansermet	['a:nsermei]
Clay	[klei]