In Maths, kiss is the shortest distance between two Lips.
In Biology, kiss is just exchange of germs from one mouth to another.
In Chemistry, kiss is a process of testing the ph of the lips.
In Physics, it's a process to charging a human body.
In Computer, kiss is a local area network in which two bodies are connected without a data cable.
In Economics, kiss is a process in which Demand is higher than supply !!