Nimmity 

A crusty old hag or witch. Famous in Australia for being the thing that children are scared off (similar to the bogeyman)

"She looks like she's seen a Nimmity" or "She's dressed like a Nimmity"

Nimmity by therealbishop February 5, 2010

Nimminy Pimminy

Meaning- Insignificant, petty,

Thank you for returning my manuscript and your enclosed nasty nimminy pimminy little note.

Nimminy Pimminy by Mr B Black January 2, 2005

Ahsum Nimity

The mighty wizard who plays the main role in the game "The magic portals of Ahsum Nimity" (for iPad).

Derived from 'awesomenimity', which is derived from 'awesome'.

Q: "What's the name of that awesome wizard?"
A: "Ahsum Nimity"

Ahsum Nimity by Will0 June 12, 2011