a feeling instilled in people when something is posted on facebook that makes one chuckle.
"so-and-so is upset; she went to the store and forgot her wallet!" <-- when posted on facebook, this scenario is full of amusingness
Amusingness makes use of the suffix ness to denote:
-The utmost form of amusing
-Entertainment to the 7th power
-The paramount of all humor*
*often in a pitifully psychotic fit of freakazoidism
Market Limone always sucks me back in with it's cute Head of Retail and overall amusingness, I swear it's like the TV show I never wanted.