to move irregularly to and fro. to vibrate especially as the result of a blow or shock. to tremble as a result of physical or emotional disturbance. to experience a state of instability: TOTTER. to briskly move something to and fro or up and down especially in order to mix. to clasp hands. TRILL entry 2. to brandish, wave, or flourish often in a threatening manner. to cause to move to and fro, up and down, or from side to side especially in a repetitive, rhythmic, or quick jerky manner. to cause to quake, quiver, or tremble. to free oneself from. to get away from: get rid of. to lessen the stability of: WEAKEN. to bring to a specified condition by or as if by repeated quick jerky movements. to dislodge or eject by quick jerky movements of the support or container. to clasp (hands) in greeting or farewell or as a sign of goodwill or agreement. to stir the feelings of: UPSET, AGITATE. TRILL entry 2. an act of shaking: such as an act of shaking hands - an act of shaking oneself. a blow or shock that upsets the equilibrium or disturbs the balance of something. EARTHQUAKE. a condition of trembling or nervousness. MALARIA sense 1a. something produced by shaking: such as a fissure separating annual rings of growth in timber - MILKSHAKE - a beverage resembling a milkshake. a wavering, quivering, or alternating motion caused by a blow or shock. TRILL. a very brief period of time. one that is exceptional especially in importance, ability, or merit —usually used in the phrase no great shakes. a shingle split from a piece of log usually three or four feet (about one meter) long. DEAL entry 2 sense 3.