Go get some a motto used a lot by Jocko Willink in his podcast about leadership and extreme ownership. In these contexts, go get some means to do something badass, to deliver results, to be awesome.
The way I see it, working hard is the way to move forward in life. If you move faster than your competition, make more hours (when necessary of course), and reliably deliver results, you will come out ahead in life. Go get some.
People blame a lot of their failures on a lack of talent. But talent is optional. What really matters is work and attitude.
Of course, in the end talent definitely means something. But for 95% of things you want to accomplish, zero talent is needed. Even for the harder and more elusive goals, talent is overrated.