So, these underpants turned up on Onslow Avenue, Elizabeth Bay.

What really struck me as odd, was that someone had gone to the effort of hanging them on a post, should their owner retrace their steps, looking for the lost jocks.

We’ve been noticing this graffiti all over town.

Here’s the latest, scribbled on the wall of St Canice’s catholic church on Roslyn Gardens, near the corner of Roslyn Street.

UPDATE: Thanks to @alliejt‘s keen eye, we’ve got another clue.

So now we’ve had:

A is for “azimuth”
C is for “cephlapod”
K is for “kibosh”
M is for “modulate”
N is for “nebulous”
Z is for “zipper”

Is it a riddle?