When someone around you checks facebook on their phone so much you feel the need to grab it and fart on it.
Example - "I was at the dear camp last week and this goober kept checking his facebook page so often I snatched his phone and went all facebutting on him"
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!