Slang phrase nigger inside the woodpile "a concealed motive or unfamiliar issue impacting a scenario in an adverse way" [OED 1989] is attested by 1800; Thornton's "American Glossary" (1912) defines it as "A manner of accounting for your disappearance of gas," consequently "an unsolved thriller.They employed samurai swords, shurikens, along with oth