Meaning Awesome or incredibly. But primarily used in reference to Usain Bolt, the world’s fastest man. The term was coined as part of a promotion by CarMax called “Usainly Fast Offers” where CarMax challenged Usain Bolt to race against their super fast online offers.
Dang, that was a usainly good commercial!
I just got a usainly fast offer on my car from CarMax
A person who is impenetrable to fault. This refers to someone who is so perfect, that they can do no wrong.
Often a person who people look up to and respect.