What do dead-ball sitution mean?

Answer 1

it is a skill in football if you play football you have dead-ball skill.and if you do a head attack also do a spring attack in a football match.a spring attack is when you roll and you kick it high.

Answer 2

A play is not occurring.

You will most often hear the term 'dead ball' in association with a penalty. This means the penalty occurred before the ball was snapped to start the play or after an official blew his whistle to rule the play over.