monkey board
n.— «The eager, quick-eyed, ragged-headed sprite, who, with the agility of a monkey or a London sparrow, skips about stand-still omnibuses, this side, that side, and hopping on and off the step behind, ever in danger of a kick from the conductor on his monkey board.» —“The London Street Boys” by James Greenwood New York Times Jan. 29, 1871. (source: Double-Tongued Dictionary)
Further reading
Twice a day the River Thames recedes, revealing a muddy shoreline. Hobbyists known as mudlarks stroll the surface searching for objects that have found their way into the river over the centuries, everything from ancient Roman jewelry to modern...
What if, instead of being an inanimate object, a dictionary were alive? That’s the idea behind a lavishly illustrated new children’s book called The Dictionary Story (Bookshop|Amazon) by Oliver Jeffers and Sam Winston. This is part of a...