Keeping it under has become uncomfortable so I'm a belly over my jeans guy now. I think when we get fat enough that a normal pants waist doesn't work too well. That's why I would prefer to wear a toga, lol.
In a woman it is beautiful at the waist and under the belly. In a man with a large gut, the only way is to throw his belly over his pants. Either the pants fall or the man looks like a clown or there is not enough size.