jerk

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jerk

[jərk]
(mechanics)
The rate of change of acceleration; it is the third derivative of position with respect to time.
A unit of rate of change of acceleration, equal to 1 foot (30.48 centimeters) per second squared per second.
References in periodicals archive ?
Her antics were the living proof that as human beings age they lose the ability to understand that jerking around on a dance floor like a poisoned prawn is not sexy, not amusing and not acceptable.
I would be jerking around like a white girl--"Dance like a Caucasoid girl
In presenting Ganymede (Clark Huggins) as a jeans-clad punk boytoy jerking around a tackily aging Jupiter (Will LeBow), the modern referentiality and costuming were less compelling, but the stylish court of Carthage struck an apt note of recognizable formality, alluding to the fantasy worlds of Hollywood's Golden Age as well as the Renaissance in its rich coloration and fabrics.