Sick as a Dog

Posted by ESC on April 12, 2000

In Reply to: Sick as a Dog posted by Brett Rose on April 12, 2000

: I was wondering if anyone knew the origin of the phrase "Sick as a Dog". I know its a pretty common saying but why a dog ??
: Im not even sure if it is English, American or Australian.
: signed
: Ace Ventura

Could it be that the dog is the only animal that we have the "opportunity" to see vomiting? I'll look the expression up in my reference books and see if there's more to it than that. It's a common expression in America but I'm willing to bet this phrase is very, very old.