[MrPoma]

package{
	import flash.events.Event;
 
	public class LOLEvent extends Event{
		public static const LOL:String = 'lol';
 
		private var _lol:String;
		public function get lol():Stirng{
			return this._lol;
		}
 
		public function LOLEvent(type:String, bubbles:Boolean=false, cancelable:Boolean=false, lol:String=''){
			super(type, bubbles, cancelable);
			this._lol = lol;
		}
 
		public override function clone():Event{
			return new LOLEvent(super.type, super.bubbles, super.cancelable, this._lol);
		}
	}
}

super.addEventListener(LOLEvent.LOL, this.handlerLOL);
super.dispatchEvent(new LOLEvent(LOLEvent.LOL, false, false, 'ha-ha-ha'));
private function handlerLOL(event:LOLEvent):void{
	trace(event.lol);
}