shakeup (Noun) — The imposition of a new organization; organizing differently (often involving extensive and drastic changes). ex. "top officials were forced out in the cabinet shakeup"
shakeup (Verb) — Shock physically.
shakeup (Verb) — Organize anew. ex. "We must shake up the company if we don't want to go under"
shakeup (Verb) — Shake; especially (a patient to detect fluids or air in the body).
shakeup (Verb) — Excite the feelings or emotions of; disturb the peace of. ex. "These stories shook up the community"
shakeup (Verb) — Change the arrangement or position of.
shakeup (Verb) — Make fuller by shaking. ex. "shake up the pillows"