Frustration of purpose has the effect of discharging the promisor from his or her obligation to perform, in spite of the fact that performance by the promisee is possible, since the purpose for which the contract was entered into has been destroyed. For example, an individual reserves a hall for a wedding.
Definition of shake for English Language Learners. : 1  to move sometimes violently back and forth or up and down with short, quick movements. : 2  to move or have parts of your body move in short, quick movements and in a way that you are not able to control.
Tremor is an unintentional, rhythmic muscle movement involving to-and-fro movements (oscillations) of one or more parts of the body. It is the most common of all involuntary movements and can affect the hands, arms, head, face, voice, trunk, and legs. Most tremors occur in the hands. In some people, tremor is a symptom of a neurological disorder or appears as a side effect of certain drugs.