A fork of Rural Dictionary
Means awesome, spelled in a retarded way.
I'm ahsum you just dont really notice!
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"