n. One who makes a business of collecting eggs, as of birds or turtles.n. One who eggs, urges, or incites: usually with on.n. In entomology, a reddish-brown moth of either of the genera Lasiocampa and Eriogaster: as, the oak-egger, L. quercus; the grass-egger, L. trifolii; the small egger, E. lacustris.