not say boo (to anyone)(redirected from didn't say boo)
not say boo (to anyone)
1. To be particularly shy, diffident, or timid by nature. Primarily heard in US. My brother is a very sweet, warm-hearted man who wouldn't say boo to anyone. How can you suspect him of committing this crime?
2. To not say a word (to anyone); to keep quiet. Primarily heard in US. The neighbor's daughter is just the cutest little thing, but she wouldn't say boo the whole time we were there. I trust you didn't say boo to those coppers about the little side business we've been running here?
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.