Looking on the internet deeply has found these results:

you don't say is the most popular phrase on the web.

yoi don't tell 10 results on the web	you don't say 11,190,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	you don't say!! literally speaking it is just another way of saying a very commonly and aptly used phrase "NO SHIT". it is when stating the blatant obvious and ... Feb 9, 2012 ... YOU DON'T SAY scene from Vampire's Kiss film... good luck watching it. I do not own this video, all rights go to the owner. The phrase “you don't say” is an idiomatic expression used to convey ... can be found on FunnyJunk, Reddit and with the tag “#you don't say” on Tumblr. 5 days ago ... You Don't Say John E. McIntyre writes about language, usage, journalism & arbitrarily chosen subjects. The problem with the rules of grammar.

yoi don't tell

10 results on the web

you don't say

11,190,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

you don't say!! literally speaking it is just another way of saying a very commonly and aptly used phrase "NO SHIT". it is when stating the blatant obvious and ...
Feb 9, 2012 ... YOU DON'T SAY scene from Vampire's Kiss film... good luck watching it. I do not own this video, all rights go to the owner.
The phrase “you don't say” is an idiomatic expression used to convey ... can be found on FunnyJunk, Reddit and with the tag “#you don't say” on Tumblr.
5 days ago ... You Don't Say John E. McIntyre writes about language, usage, journalism & arbitrarily chosen subjects. The problem with the rules of grammar.