blind side(redirected from a blindside)
1. The side that one is not currently facing. Come on, ref, isn't that a penalty? He totally hit me on my blind side!
2. An area that is not able to be seen, either due to its location outside of the field of vision, or due to some physical obstruction or a defect in one's vision. That car must have been on my blind side because I didn't see it coming at all!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
see under blind spot.
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.