Cottaging
Cottaging is a gay slang term, originating from the United Kingdom, referring to anonymous sex between men in a public lavatory (a "cottage" or "tea-room"), or cruising for sexual partners with the intention of having sex elsewhere. The term has its roots in self-contained English toilet blocks resembling small cottages in their appearance; in the English cant language of Polari this became a double entendre by gay men referring to sexual encounters.