It rhymes! I’m assuming it matches the meter/rhyme scheme of a particular song, but I’m music stupid, so I can’t really make a guess. But the point is to be funzies and light hearted :)
It's just something I come up with when I want to share my love for Linux. No need to look too much in to it. I use to have it rhyme more after my 'tell you some more' bit but, not this time.