(as) sick as a dog

(as) sick as a dog

slang Very ill. I haven't been avoiding you, I've just been sick as a dog. I had to go to the doctor on Monday because I was as sick as a dog all weekend.
See also: dog, sick

*sick as a dog

Cliché very sick; sick and vomiting. (*Also: as ~.) We've never been so ill. The whole family was sick as dogs. Sally was as sick as a dog and couldn't go to the party.
See also: dog, sick

sick as a dog

Very ill, especially from a stomach malady. For example, I don't know what was in that stew but I was sick as a dog all night. This simile was first recorded in 1705. Why a dog should be viewed as particularly sick remains unclear.
See also: dog, sick

sick as a dog

If you are as sick as a dog, you are very ill. The last time I ate shellfish I was sick as a dog for 48 hours afterwards.
See also: dog, sick

sick as a dog

extremely ill. informal
See also: dog, sick

(as) sick as a ˈdog

(informal) feeling very ill; vomiting a lot: I was sick as a dog last night.
See also: dog, sick