An
acronym for Out Of Place, although in usage it's usually referred to as "an OOP", meaning "an Out Of Place object". Used often in
Fortean literature to
denote something (almost always an
animal) which appears somewhere it would/should not
normally be found.
The Beast of Bodmin Moor is a prime example of an OOP; if the majority of witnesses are correctand the beast is really is a big cat of some kind, then it is certainly out of place in Bodmin Moor in the North of England.
A less celebrated but certainly more frequently observable example of OOPs can be seen on pretty much every visit to a supermarket. These are items which shoppers have picked up and then later abandoned in another part of the store, sometimes intact, sometimes opened, and sometimes even mutilated. Supermarket OOPs become very apparent once one begins looking for them, and can be a great source of wonder and joy, or at the very least a way of easing the boredom of grocery shopping.
Supermarket OOPs are generally found in greater concentrations near checkouts.