means To move, climb, or act in a hurried, disordered way — or to mix things up jumbledly, as with eggs or a signal.

from A 16th-century English word, probably a variant of 'scamble' (to struggle or jostle for something), itself of uncertain root but likely imitative — one of that family of 'scr-' words like scrape, scratch, and scrabble that all suggest clambering, grasping, frantic motion. The breakfast sense (beating and stirring eggs into soft chaos) is a later, gentler conscription of the same idea of things tossed messily together.