tick-tacker
n.— «Tick-tackers lasted longer. Usually wearing white gloves for better visibility, tick-tackers conveyed prices from one enclosure to another by hand signals.» —“Randwick’s last tout: nine tips but none the winner” by Max Presnell Sydney Morning Herald (Australia) June 24, 2004. (source: Double-Tongued Dictionary)
Further reading
In Cockney rhyming slang, apples and pears is a synonym for “stairs,” and dustbin lids means kids. Plus, sniglets are clever coinages for things we don’t already have words for. Any guesses what incogsneeto means? It’s the...
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...