a website Dan Howell (danisnotonfire) created during Dan and Phil's Games first spooky week video, Five Nights at Freddy's (FNAF) before he fell off his chair (I'm sorry Dan)
a plural form of the word "nops" which means "yeah", "sweet" or "josh shut the fuck up". Noppity can be translated as a term such as "shibby" or "snoogins". It can mean "crazy, "cool" or even "holy shit that was some good weed"
Dude that cheeb was noppity.
Damn dude that chick was fuckin noppity
No grandma, no noppity for you!