the.com/energizer
The thing that powers the room, or the bunny that refuses to die.
means A person, thing, or product that gives energy, motivation, or electrical juice to something else.
from From energize, built on Greek energeia (activity, at-work-ness) — energizer is simply the doer of that act, cemented in pop culture by a relentless drum-banging pink rabbit since 1989.
Marketing legendThe bunny was created to mock rival Duracell's bunny.
Still goingSame ad slogan has run over thirty years.
Human versionWorkshop energizers are quick games that wake sleepy meetings.