For better or for worse [no that's not supposed to be an oblique clue] let's try OPERCULUM. Give your imaginations free rein and let's see what we can come up with.
PM your daffies to me; results to be posted next Monday 10/9.
...daffynitions so far, that is. And one that seems to have gone all Hidden on me - let me know, whoever you are, so I can stop scratching my head in puzzlement. Otherwise I have to apologize for leaving somebody's contribution out.
Anyone else want to toss one in? Polls close Monday morning EDT.