A responding answer or call out to something that is to be desired: such as a person, place, food, or thing.
Q: Lets take the rest of the week off and go to Cancun for a stint...sound yummy.
A: Absolutely...yum yum!
Yum Yum take a look at him, he is living walking proof that God shows off...yummy!
Yummy...you have to see this...Man take a look at his tie...yum yum!
Look at all of this good organic food, Yummy just imagine mix'n a lil of this and a lil of that yum yum!