yummy

a reaction word one uses in retaliation to a sentence, picture, or object they like, and/or agree with. Much like "cool" or "awesome". Yummy can be used when you have nothing else to say. It's simply an agreement, or commentary to what one has been shown or told.

"I am going on a walk"
"Yummy"
Or
"Here is a picture of my dog"
"Yummy"