For someone to diss you/mock you based on a characteristic of yourself, your personality, clothes etc. in front of a lot of people
Example of a Roast Whipping Post:
Teacher: Ok Class, that's the bell everyone is dismissed. Stacy, please see me after class.
Stacy: Why? Can't get a date for prom?
Teacher: If that was the case I would've asked one of the pretty girls.
Class: DAYUM!!!!
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!