"justdoit" is the slogan of Nike.
Justdoit is similar to goforit;; Nike is a classic in advertising, simple and clear, colloquial, and has different meanings from different people's perspectives. From the consumer's point of view, it means: I only choose it; Just use this. From the businessman's point of view: give it a try.
Extended data
"justdoit" comes from the last words of a condemned man.
Before being executed in Utah, the executor asked gilmour what his last words were, and his answer was extremely simple: Let's do it.
"I clearly remember that when I saw the murder that night, I was shocked. However, I really like this sentence he said before he died, especially the word' doit', which is very chic and sportsmanship. " Vuitton explained this. Later, in order to strengthen the appeal and tone of this advertisement, he added the word "JIU" in front of it, meaning "just do it"