you know as well as I do

you know as well as I do

We both know equally well (that something is true). Used rhetorically to remind or convince someone about something. I know we need money, but you know as well as I do that we could go to prison for getting involved in something like this. Now Tim, you know as well as I do that your parents don't allow you to have sugary snacks, so you can't have any here.
See also: know, well
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

ˌyou know as well as ˈI do

used when you are trying to convince somebody that something is true: You know as well as I do that if she finds out, she’ll stop us going.
See also: know, well
Farlex Partner Idioms Dictionary © Farlex 2017
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