cheddar curtain
n.— «At that time of year (Feb, March), I will probably be in Wisconsin. So I will fly back from behind the Cheddar curtain.» —“Re: Tasteless Secret SAnta” by Julian Macassey Usenet: alt.tasteless Nov. 10, 1993. (source: Double-Tongued Dictionary)
Further reading
Among biologists, a frog’s croak is known as an advertisement call. It’s a male frog’s way of making himself known. A Wisconsin listener says children in her area learn that this sound is jugarum, jugarum. Poet and editor Willard Espy...
Among London cabbies, a musher is somebody who owns their own cab, a starving musher is someone still paying for their cab, and musher’s lotion is rain. The book Schott’s Significa: A Miscellany of Secret Languages (Bookshop|Amazon)...