A milk rag is a metaphor for being angry at someone.
Origin: Two girls were eating and one spilled their milk. She proceeded to clean it up with a paper towel. The other girl kept cracking jokes. Then, the girl who was cleaning it up replied, "I'm gonna throw my milk rag on you."
This is the right way to do it. In fact it makes your cereal more enjoyable as it helps soften the cereal slightly ,with the pressure making the milk seep into the cereal ,so it has a melting sensation when you chew on it than when it's practically dry and you chew down on it and cut your gums if you are unlucky. Yes although putting the cereal after the milk makes it look nice, You are sacrificing your cereal eating experience.Milk after the cereal.
Me: Imma go eat breakfast now!
Butthurtbeforecerealmilkperson: I WILL FRIKIN ASPHIXIATE YOU IF YOU DO THAT!?!?!1?!111?!1?!1
*Person eats dry creal* *Cuts gum* *unsavoury*
Me: Serves you right for not listening to me after I told you that pouring the Milk after
the cereal was a better idea.
*Pours milk after and gobbles it without a hitch) Milk after the cereal