secret squirrel

== English == === Etymology === From Secret Squirrel, a 1960s secret-agent cartoon character parodying James Bond. === Noun === secret squirrel (plural secret squirrels) (informal) Someone who is being secretive. 2010, R. P. Nathan, The Second Best Man, Cassiopeia Publishing, page 46: Christian was working on some Secret Squirrel project with Mike, and Wayne had his headphones in and was coding furiously.