turn one's stomach
Nauseate one, disgust one, as in That mess of spoiled food turns my stomach. This idiom alludes to being so nauseated that one vomitsthat is, the stomach in effect turns around and brings up food. It was first recorded in 1622.
|turn one's stomach|
|upset and make nauseated; "The smell of the food turned the pregnant woman's stomach"; "The mold on the food sickened the diners" [syn: sicken]|