That would be what’s usually known as a “Non sequitur.”
Non sequitur (pron.: /nɒnˈsɛkwɪtər/) is Latin for “it does not follow.” It is most often used as a noun to describe illogical statements.
And that’s just what this video is. “High Diving” + “Giraffes” aren’t generally used together in sentences. But here we go!
“This is not mine but I came across it today and I thought of you. High-diving giraffes! (I mean, really, where else but up high would giraffes dive from, anyway?) Make sure you watch all the way to the end of the credits.” -Cuteporter Allein S.