Handbags (The sad, the bad and the ugly. Non-productive stuff here.)
(Sorry, Dostaf - that's one of my favourite adverts and I just got carried away.)
a Wig-anism An interesting th-ear-y, but I fear it may be refuted, Dostaf.
There's another suggestion, as I carefully observed from your link:
"When open, the wings are noticeably ear-shaped which may have given rise to the name 'earwing'. It's possible that over time, this name became corrupted and we now call them earwigs."
Replied: 16th Mar 2012 at 14:56