Bob: hahaha laser!
It works like this: Atoms of a particular material are excited (given energy) by various means (usually by applying a current); when more atoms in this material are 'excited' than 'stable' a light beam is passed through the material which causes the 'excited' atoms to revert back to their 'stable' state (sometimes in stages); this stimulates the emission of additional light; the process is repeated until the light beam is amplified to the desired energy, at which stage it leaves the system.
Micky jumps out of his seat and heads towards the door. Just before the door closes, Micky lets his siblings know that the car is approaching.
Micky: Shotgun. Ha ha ha. Ha.
Pilar and David: Shotgun!
Micky: Too bad! I called it. Better luck later, losers.
Pilar: Well, laser! Now what, punk.
Micky and David, then, get into the backseat of the car with an air of humiliation.
Pilar whispers: Laser beats all.