be (as) sick as a dog

slang To be very ill. Honestly, I haven't been avoiding you—I've been sick as a dog. I had to go to the doctor on Monday because I was as sick as a dog all weekend.

Common Names:

Name	Pronounced	Usage
Vazha	-	Georgian
Janet	['dʒænit]
Ittai	-	Biblical
Roderick	RAHD-ə-rik (English), RAHD-rik (English)	English, Scottish, Welsh
Ulli	-	German
Fleur	FLUUR (French, Dutch), FLUR (English)	French, Dutch, English (Rare)