basically it mean when a food is yummy or if someone says it after a picture you send it either means they like the picture or they dont know what to say
person 1: *sends pic of themselves*
person 2: yummy
person 1: sends something
person 2: yummy
Very sexy, like you want to chew on them.
Oh baby, your so yummy all of a sudden!
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"
When you see an amazing thing u have to eat
Oh that is yummy
*just at pussy*