'Like a boss!' When things go just the way you planned them to do, you turn to the success kid to show the world that you've nailed it. Passed that test? Been offered that job? Successfully completed a DIY project? The expression of self-satisfaction and the clenched fist of celebration let everybody know that you've won at life today, without you even having to say a word.
The little fist-pumping boy in this meme is Sammy Grimer, who wasn't even a year old when he had his epic moment in front of the camera. The picture may have saved his father's life; when his dad was struck down by illness and required a kidney transplant, Sammy used his meme notoriety to drive a crowdfunding attempt successfully raising the money required for the expensive treatment. Then, he celebrated with a brand-new fist-pump picture!