An acronym that stands for "Bless Your GayHeart." Usually told to a friend when you see someone overly flamey or queeny. Usually said in jest and sarcasm - mildly demeaning.
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!