belly button
n.— «The advanced collective skills organization will focus on the needs of Ml units in the field. It will develop and export common scenarios, lead the Intelligence Center’s distance learning development, and develop and export tools (like the Combat Synthetic Training Assessment Range and Military Intelligence Combat Assessment Tables) to facilitate collective training and evaluation by unit commanders. In a nutshell, you may think of Continuous Learning as the single “belly button” to push if you are in the field and need training help.» —“USAIC&FH restructure” by John W. Smith Military Intelligence Professional Bulletin Jan. 1, 1998. (source: Double-Tongued Dictionary)
Further reading
One secret to writing well is … there is no secret! There’s no substitute for simply sitting down day after day to practice the craft and learn from your mistakes. Plus, childhood mixups around word definitions can lead to some funny stories...
She sells seashells by the seashore. Who is the she in this tongue twister? Some claim it’s the young Mary Anning, who went on to become a famous 19th-century British paleontologist. Dubious perhaps, but the story of her rise from seaside...