blind side Definition

1. The side on which a person cannot see and is blind to approaching danger, etc.
2. A person's weak point or blind spot 3.
3. rugby.
The part of the field between the scrum, etc and the touch-line nearer it.

(especially N Amer)
1. To take advantage of a person's blind side; to catch someone unawares, by, or as if by, approaching them from their blind side.

Form: blind-side