What Does It Mean By "anonymous Nightmare"?

what does it mean by "anonymous nightmare"?

It might mean give a nightmare you think will make the muse scream awake... which means GET REALLY MEAN AND CRUEL))-Moony Mun

Oh and screaming is just stuff that happens when your around me. Like, it's just a thing that happens. (this blog is so good aaaaaaa)

Mickey sighed. “No, the screaming coming down the hall from Cuppy and Bendy’s room… And crying? The fuck is going on?”

oh dear...))-Moony Mun

It look like Assassin Cuphead and Assassin Mugman had a very weird baby who is a jerk... I'm not sorry for saying that Sweetie))-Moony Mun

jazz hands again whats up meet Acano (ah-cah-no); hes formed from the drink Americano and he calls so many people doll n hes cocky and i love him,

WHOO!! Yes this is canon and happening soon!))-Moony Mun

// Newly engaged!

@ask-assassin-toons ‘s Muggy is the husband to be~

Guess what the wedding planners are doing at the moment~~ what do you guys think of this idea?))-Moony Mun @askaflowerandtwocups