B2idiominformalhealthIELTS-friendly
sick as a dog
USUK
very ill, especially vomiting a lot
In British English 'be sick' often means 'vomit'. Don't confuse it with 'sick as a parrot', which means very disappointed.
In context
I ate some bad seafood and was sick as a dog all night.
She came to work as sick as a dog, so her boss sent her home.
More idioms about health
- a clean bill of healtha doctor's statement, after an examination, that someone is healthy
- a new lease of lifenew energy, or a chance to be active or useful again
- a ripe old agea very old age, reached in good health
- a second windnew energy that lets you continue after you felt too tired
- a shadow of your former selfmuch weaker, thinner or less impressive than before