Definition of 'to practise what you preach'
If you say that someone practises what they preach, you mean that they behave in the way that they encourage other people to behave in. He ought to practise what he preaches.
What does a practice what you preach mean?
Definition of practice what one preaches
: to act according to the way one tells other people to act Practice what you preach—don't smoke if you tell your children not to smoke.
What is it called when someone practices what they preach?
Synonyms:commit, transgress, resort to, stoop, sink, perpetrate, sell out, go/run off the rails, compromise yourself/your position, not scruple to do something. Synonyms: relaxing. nice. pleasing.