Definitions for edgewiseˈɛdʒˌwaɪz; -ˌweɪz
Random House Webster's College Dictionary
with the edge forward; in the direction of the edge.
Origin of edgewise:
with the edge forward or on, by, or toward the edge
"he sawed the board edgeways"; "held it edgewise"
as if by an edge; barely
"I could not get a word in edgewise"
As if by an edge.
Once his boss got started, Jim just couldn't get a word in edgewise.
with the edge towards anything; in the direction of the edge