Knickers, who weighs a whopping 220st, eats more than 30kg of grass and grain each day.
He’s so large he cannot be slaughtered in an abattoir and made into steaks.
Now Geoff Pearson, who owns the monstrous beast, said he is proud the cow will live out his life as king of the herd.
He said: “Whenever you want to know where your cattle are you just cast your eye over the paddock and you can’t miss him.
“The other cattle look up to him, wherever he goes they go. If he wants to go for a walk, they follow, if he wants to sit down, they wait around for him to get up.”
Knickers’ huge diet is a mix of natural green pasture and rations of cereal grain.
But Mr Pearson, of Western Australia, believes his size is mostly due to genetics.
The farmer, who has 20,000 cattle, told Daily Mail Australia : “He was always a standout who stood above the rest. We kept him on because we thought he had potential to be a big steer but never imagined he’d grow to be this huge.
“It’s quite daunting being up close to him, he’s far bigger than any other steer I’ve had. But he’s very placid, not aggressive, just inquisitive.”
Incredible images and footage show Knickers towering over a herd of wagyu cattle.
Knickers is only slightly shorter than Mr Pearson’s son Tex, 17, who stands 6ft 7in tall.
The average size of cattle across all breeds is 1,386lb (630kg) – up 18% in the past two decades.
Mr Pearson added: “He’s gone from being a production animal to I guess some sort of star.
“He’s just getting on with his job, which is basically just eating and sleeping.”