This is without the darkest day in a man'slife. The bitchaversary marks the exact date that a man's woman, who seems to be a faithful damsel, decides to toy around with another man's meat and swallow his brain rain, which is clearly inferior to yours. This whored out yeti then proceeds to leaving you, for a man she met less than three hours ago, which feels worse than being raped by a elephant in the sub-tropical region of Africa. The bitchaversary also normally marks the day when the honorable man sheds bro tears.
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!