The Layman "Scrum" Means

So lets start with the meaning of Scrum ,everyone just heard the team Scrum framework and most of you are dealing with it everyday to make other understand this term......:)as while creating up any word or sentence first we need to learn ABC......Z right ,So, lets get involved with it first.

What is Scrum??
Have you guys heard about game Rugby, this term can be understood from there :

It is an ordered formation of players, used to restart play, in which the forwards of a team form up with arms interlocked and heads down, and push forward against a similar group from the opposing side. The ball is thrown into the scrum and the players try to gain possession of it by kicking it backward toward their own side.