Awesomenosity is the level of awesomeness of someone. It can also be an aura put out by somebody, where everyone around him (it's going to be a him.. trust me girls aren't cool or awesome.) feels much more awesome.
"Your awesomenosity is about a 6.. mines like at 300 you're not even close to being as awesome as I"
"Your awesomenosity is really making everyone freaking awesome"