Considering we've got an ass that just won't quit...

Considering we've got an ass that just won't quit...

Guys, the thread to this one has got me giggling my socks off, but if any one could explain the original joke I'd be appreciative.
The serious answer is, no! The UK is not sexier! And is certainly now decidedly less cool.
OK, best I leave the politics out of it lol
subject to availability.
We were all born with one, surely, and need look no further than our own trousers...
...oh wait, lol. You meant other than your own. Ok, catching up now.