American: "Why do you put that chocolate stuff on your bread rather than Jiff peanut butter?"
European/Wannabe European: "1. It's called Nutella. 2. Because I'm a Eurolitist. And 3. You're an idiot."
Referenced on a little known parenting website. Symptoms include regularly being rightly pissed off.
Not to be compared to Clairecitis which instantly renders its victims utterly humourless while lasting effects includes sanctimony, disdain and boredom.
A hardo is a person who tries extremely hard at everything. Most times a hardo will try very hard at things that do not require excessive effort. For example, sports practices, gym class, etc.
Wow did you see Jack at practice today? What a hardo!