When something just does it for you, whether it be something you like or a photo you saw that you liked, i'ts a term used to express that you accept and like whatever it may be.
"Ariana take a look at this selfie!" "a million times yes, I love this pic"
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!