A noun form of the word heinous. It is used to indicate that a person, place, or thing is so awful, so ghastly, so annoying that it becomes a sort of monstrosity in its own right. It differs from the word heinousness in that one can apply it to situations not normally deserving of the word without trivializing the word heinous.
Oh! The heinosity! I can't believe that you left a turd that huge sitting in the toilet unflushed!
A person who constantly interacts with women with the sole aim of getting into an intimate relationship with them, however always gets friend zoned at the end.
“I feel so bad for Henry, he’s such a hedomite!”
Henry said “oh I hate being a hedomite”
Something that is both heinous, and an atrocity. May be used to describe a person, place, event, thing, state of mind, or anything else you can think of.
"Did you go to Jim's party on the weekend?"
"Ya it was a Heinocity"
"Did you hear about the serial killer that was just caught?"
"Ya, he was a heinocity"