shadowpost

noun
UK /ˈʃædəʊpəʊst/
US /ˈʃædoʊpoʊst/

A shadowpost is a pretend post that only exists in shadows and games.

The kids drew a shadowpost on the wall with chalk.


OTHER MEANINGS

2. A secret message left in a hidden place.

She found a shadowpost tucked under the bench.

3. A spot where a shadow always falls at noon.

The old tree made a shadowpost on the grass.

4. A pretend mailbox used in make-believe games.

We mailed letters to the shadowpost in the corner.