The act of performing a typo. Generally followed by an, "Aw damn" or immediately added asterisked correction. Usually associated with one who types with typos fairly often.
Great when a, "Man I'm always typing with typos." just seems plain long, repetitive, or even unnecessary.
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!