practice what one preaches

(idiom) do what one advises others to do

Example Sentences:

A: I think you need to lose weight, my friend. You look to fat.
B: You weigh 300 kilos!
A: I know. So what?
B: You need to practice what you preach.

My mother told me not to drink alcohol, but she drinks every night. She needs to practice what she preaches.

From the Blogs:

Working On a Full House: Practice what you Preach!

Media:

Similar idioms:

1. down something
2. bend over backwards
3. drink like a fish
4. water under the bridge
5. let it slide
6. break one’s back
7. hot air
8. hold one’s tongue
9. forgive and forget