Funny, Sunny, you sure don't look like you have the stomachs for it.... nor did I know this meaning of ruminate, and certainly it can't have been the intended use.The thought of being referred to as a cow chewing my cud would require a complete wardrobe change and as well a change of expression as I eat my dinner!
It's more like: "after turning it over and over in my mind I went into the dining ruminate dinner".