A combination of demolish and delicious, a food/drink that is so delicious that you will have too much and it will demolish you and/or your internal system--demolicious. For example, it's anything from a fudge shoppe on vacation, super spicy tacos from a food truck, a tasty margarita with too much tequila. It will DEMOLISH you but so delicious......
"This case of sliders is demolicious, I can't believe there's only 2 left."
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.