When you think someone is speaking rubbish and you dont agree but you feel there may be one more thing you would like to say before resting the issue in the assumption that the subject is offline.
(person 1)
I still think there could be a little man that lives in the fridge who turns the light on and off!
(person2)
Whatever trevor never! But if there is then he would starve to death because there is never any food in your fridge.
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!