A lazy, snowy day conversation

The scene:
Jen’s at the dining room table, working at her computer. I’m slouched down on the couch with my laptop on my lap and a bag of Cheetohs next to me.
Jen: Is un-altruistic a word?
Me: (mumbles) no
Jen: Well, what’s the opposite of altruistic?
Me: Asshole
Jen: I’m making it a word. Adding a hyphen makes it a real word.
Me: huh…okay.