Everyone brings a high amount of legal and/or illegal drugs (most likely in form of pills) and throw them unlabled in a bowl with candys.
Then the bowl is handed from player to player untill just one person remains.
The last one standing or at least alive is obviously the winner.
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!