Telegraph.co.uk: Police hunt supermarket bottom sniffer. [Video available at link: it's creepy.]
The man was caught on CCTV creeping up on the unsuspecting worker at least 20 times as he stacked shelves at a Co-op store in Plymouth, Devon. The footage shows him casually pretending to chose items from shelves before suddenly crouching down behind the employee.In general, his behavior is one of the class of paraphilias, a list of which is on Wikipedia. If he were rubbing non-consensually, that would be frotteurism--but he's not rubbing. Flatulophilia doesn''t seem right. Olfactophilia doesn't either.
What's a classically derived term for butt-sniffing?