Arse about

You've got this arse-about!

For the dome of the belly turned arse about has its parallel in the eye that falls out like the contents of a broken egg and that in its evocation of and preempting of regeneration becomes, in Bataille's novel, unremittingly erotic and polymorphously perverse.

Strike me if wasn't thinking old Colonel Bill had got it arse about.

‘This is arse-about, you know,’ I said. ‘You′ve got the athletic skills, and I'm the one going mountain climbing.[…].’