When someone burns you, or you burn someone, some obnoxious person in the back would yell "
APPLY COLD WATER TO BURNED AREA!" Because naturally, you or the other person just
got burned... See roast or
roasted . It's basically just a stupid little statement to say to someone who just got burned by another person.
Kate:
Luna that song is so old why do you listen to it!?
Luna:
You're mom is old, but you still listen to her.
Someone from the background who just so happened to have overheard: (To Kate)
Apply cold water to burned area.