Random Memes are basically any memes that don't have a frame of reference that aligns them to the others. Hence random.
It's the very beginning of the day on Monday and we're already looking for ways to shirk our duties. With the internet at our disposal, there are myriad ways to do just that. The most subtle way to slack off is probably looking at memes in a tab adjacent to your work. Just remember to switch 'em when your boss walks by. You'll look like you're happily working but it's just the memes makin' ya smile.