`Johnny was applied as a nickname for Confederate soldiers by the Federal soldiers in the American Civil War; `greyback derived from their grey Confederate uniforms

[ Syn: rebel , reb , johnny reb , johnny ]

a dowitcher with a grey back

[ Syn: grayback , limnodromus griseus ]

a sandpiper that breeds in the Arctic and winters in the southern hemisphere

[ Syn: knot , grayback , calidris canutus ]