How can he have loose skin under muscle , please elaborate on this 
Let's get one thing straight. It seems you are slow in your reading skills.
First, I never said "under his skin", you said so, not me.
Second, That's the genius of the english language (which I don't think you understand), it's the way you interpret what I said. Why in the world would anyone interpret what I said to think I meant "under the skin"? lol, you really have to be an illiterate fool to interpret it that way. When speaking about bodybuilding it's a visual process, not under neath the skin, lol.
Third, what is all of the skin hanging on his lower back in the rear latspread? If his lower back was tight in the rear latspread, it woudn't have any loose skin hanging. Please explain with a reasonable answer. Which I don't think you can.
Fourth, my answer is not an oxymoron. An oxymoron is saying that he has tight and loose skin in the same pose, which I never said. I said "he has tight skin in the crunch pose, but has loose skin in the rear latspread. That means he is doing 2
different poses. Now try to explain to us all in plain english how that is an oxymoron?