Hi, Rusty!
Your saying that "mosh pit" is beyond your ken  put me in mind of the Radio shows!
Do you remember "Beyond Our Ken"?
With  Kenneth Horne; Kenneth Williams; Bill Pertwee and a few others whose names I can no longer recall.
 Later, it was followed by "Round the Horne"!
I used to really enjoy listening to  those on a Sunday lunch time!
You can buy the Revised 13th edition of chambers, Rusty...like Malone has.
That seems to be okay?
I don't think that a 14th edition has yet been produced?
I do have an edited list of all 500 "missing words" printed out, and now placed in the back of my own Chambers!  
"Mosh pit" however, is not amongst them! 
Yes, you will all enjoy your outing to the Pine Cone tomorrow!
It is great that Miss O'H is going  along with you, too!
And  speaking of outings...
We are now away to visit the cat, feed the fish etc......
Keep your fingers crossed that the porch  door doesn't fall out again!
(God alone knows when I shall be back if that happens!)
No, Malone, "mosh pit " was not one of the missing words....
Courtesy (huh!) of Chambers, I do have a  printed out list of said 500 missing words!
Hello, Pigale! 
Yes, I am fine, thank you!
I am glad that you missed out on those horrific  storms!
We had heavy rain here, but (fortunately for the dog) no thunder.
I shall look up "moshing" on YouTube later........
Right now, I am going over to my daughter's to see to the cat...…..