Herpes of the mouth. Not to be confused by oral herpes, which is entirely different, obviously.
Its main source of distribution is the swapping of generally similar looking bottles.
Sue: Hey Sam, I may have misappropriated my bottle and it looks like yours.
Sam: Oh no, perhaps you now have mouthal herpes. That is not fun.
when you are extremely frustrated because your boyfriend is mean and won't let you suck his dick even though the desire to suck his dick is eating you up on the inside
Boyfriend: I'm a big controlling dom and I won't let you suck my dick unless I say you can
Mouthually frustrated person: I dont think I am going to make it if you don't let me suck your cock PLEASEEEEEEEEEEE
Turn the light off, take a laser pen and shine it into your teeth and look up at the ceiling. You have created an awesome light show aka aurora mouthealis