When you leave food coloring out too long and it goes all modly and staly.
The gone off food colouring tastes like piss.
When you leave a nectarine out for too long and it goes moldy
The gone off nectarines taste like infections.
When you leave lemon juice out too long and it goes rotten.
The gone off lemon juice tastes like acid.
When you leave the eggplant in the fridge for too long and it goes off.
The gone off eggplant smells stink.
When you leave bacon in the fridge for too long and it goes stale.
The gone off bacon tastes like cardboard.
When you leave chicken curry out for too long and it goes rotten.
The gone off chicken curry tastes like cat food.