The wording comes from the familiar English idiom it is what it is, a resigned way of saying a situation cannot be changed. The playful izz spelling gives the familiar saying a casual, internet-meme flavour, turning a plain acceptance into something quotable and repeatable in short videos. Clips like this one tend to circulate on soundboards and social feeds rather than coming from a single famous scene, and their appeal is their brevity: in about four seconds, they sum up defeat, bad luck or an awkward outcome without needing any explanation.