bu ne perhiz bu ne lahana turşusu
(what a diet, what a sauerkraut) •
This idiom means to act in a way that contradicts one's own words. It is generally expressed to condemn people whose words and actions do not match.
"Adam dün neler diyordu, şimdi neler yapıyor, bu ne perhiz bu ne lahana turşusu?"
"That guy was saying one thing yesterday, now doing the opposite, what kind of a diet, what kind of a sauerkraut is this?"