the.com/egg beater

means A hand-cranked kitchen tool with rotating blades or beaters used to whip eggs, cream, or batter without manual whisking effort.

from A straightforward compound of 'egg' and 'beater' (one who or that which beats), coined in the 1800s when rotary mechanisms — gears turning a crank into spinning blades — were patented as kitchen labor-savers. The name simply describes the job: a device for beating eggs, no myth required. In American slang the term later got borrowed for sputtering small aircraft and helicopters, whose whirring blades reminded people of the kitchen gadget.