knee-jerk

A spontaneous, thoughless, predictable and stereotypical reaction to something, usually an opinion or a statement.

An entire culture of American neo-conservatives has seemed to build itself on a type of knee-jerk reaction to any kind of criticism of the Bush Administration or the loyal element of the Republican Party, even from fellow conservatives -- the kind of pseudo-patriotism discouraged by Theodore Roosevelt.

by LudwigVan November 10, 2003

knee-jerk

automatic, quick and without thought

Allergies are the immune system's knee-jerk defensive responses to unknown substances.

by Light joker January 17, 2007

Knee-Jerking

To masturbate by placing your penis between your legs and then moving your knee with your hand.

He performed a knee-jerking to the rhythm of a Ace of Base song.

by xerobull March 28, 2013

knee jerk

An orthopaedic surgeon who happens to also be an idiot, despite both the excellent training and higher than average IQ.

I'm glad that the Knee Guru replaced my knee, but he is a total knee jerk when it comes to bed-side manner.

by Quills13 January 23, 2011

knee jerk

A handjob from a midget

"she was kinda short but I loved her knee jerk action!"

by L0VE (the 0 is a zero) November 2, 2009

Knee Jerk

Verb: the act of using the inside of the knee to stimulate a mans penis in order for him to ejaculate.

Dude, she wrapped her leg around my dick and gave me the best knee jerk.

by Imsorad February 6, 2021

Knee jerk liberal

a person of strong liberal convictions who reacts predictably and emotionally to certain events.

Did you see how he reacted?He must be a knee jerk liberal.

by NyloxGYTLOL June 13, 2021