look up any word, like smh:

1 definition by -created by Rose-

 
1.
Its just the same as saying, "im down"
But instead you are saying "ya, im down like a dog." Down like a dog refers to the yoga position downward facing dog. so its just like you are saying I'm down but are adding dog to the end.
"alright sounds fun im down like a dog"
by -created by Rose- November 19, 2008