Meaning of the word "sick as a dog" in English

What does "sick as a dog" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

sick as a dog

US /sɪk æz ə dɔɡ/
UK /sɪk æz ə dɒɡ/
"sick as a dog" picture

Idiom

to be very sick, often with vomiting

Example:
After eating the spoiled food, he was sick as a dog all night.
I drank too much last night and now I'm sick as a dog.