I understand it as a litmus test on jackass/wise-guy remarks.
Sisyphe wrote::hello: Hi...
Reading a scholar paper, yet unsually written in very unscholar way. I understand there is a pun, but I do not understand the pun :Many people writing on walls nowadays seem to regard themselves as remarkably witty in their message or comebacks, no matter how silly they really are. This tradition of the inscribed witticism surely dates back to ther earliest times. But are we always aware of this fact, when it comes to linguistics analysis of Greek wall inscriptions? An acid test (or rather : jack-acid test), challenging our skills in that respect, can easily be provided : [follows an inscription, possibly to be understood as an homophobic onset]
I quite understand an "acid-test" (a test which destroys our pre- or misconceptions on matters it goes on), how is "jack-acid" to be understood ?
Lot of thanks in advance (for I will forgot thereafter).