From WordNet (r) 3.0 (2006):
shake up v 1: shock physically; "Georgia was shaken up in the Tech game" [syn: jar, shake up, bump around] 2: organize anew; "We must reorganize the company if we don't want to go under" [syn: reorganize, reorganise, shake up] 3: shake; especially (a patient to detect fluids or air in the body) [syn: succuss, shake up] 4: stir the feelings, emotions, or peace of; "These stories shook the community"; "the civil war shook the country" [syn: stimulate, shake, shake up, excite, stir] 5: change the arrangement or position of [syn: agitate, vex, disturb, commove, shake up, stir up, raise up] 6: make fuller by shaking; "fluff up the pillows" [syn: fluff up, plump up, shake up]