A different form of an excuse. example: it is very similar to no you. It is also a word so you don't have to follow an instruction or something that someone wants you to do.
"if you talk you like (whoever)" said (someone). "Goobadiga" you said.
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!