not trust (one) an inch(redirected from don't trust an inch)
not trust (one) an inch
To not trust one at all. I've known Vick since we were kids, and I don't trust him an inch—he's always up to something.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
not trust somebody an ˈinchnot trust somebody at all: He says he just wants to help you but I wouldn’t trust him an inch if I were you.
Farlex Partner Idioms Dictionary © Farlex 2017