About Bk's washing machine.

[DeLMrcs]

Originally Posted by Mandolin

The "Secret T-Rex" is also fishy. How do you get that one?

Mumbo says you discovered the T-Rex transformation, but that it's best left for the next game.

Rare's "direct" sense of humor.. that's why.

[Darklink]

I was gunna ask about that a coupladays ago but i didn't wanna be spammed with noob bombs. I heard that the T-Rex thing was a hoax, so i just dismissed it.

[AndyNPC]

Mumbo doesn't say you "discoverd" a secret t-rex transformation, he says: Mumbo turn bear into t-rex to crush the witch. Never mind, me save for next game. (Isn't exactly what he says but pretty darn close.)
It may run off the same variables as the washing machine.

[Whyme123]

With the machine, he says something like

"Mumbo stick broke, need new one. I change back bear and bird now."

[glitchman]

if you collect an sns item when you already have them mumbo says what whyme123 said