Re "moot"; I've heard someone say, "That's a mute point".

Also, folks usta say "tisk tisk" to express "oh, too bad", or "shame on you", or suchlike. I think it came from the comics, especially Joe Palooka, where the character Humphrey often said "tsk, tsk", a staccato sound made by pulling a bit of air through your teeth with the tip of your tongue (hard to describe in words, but ustabe common when I was a brat-- and I've used that sound for years to call the cat, quietly). So over the years folks read "tsk", caught the meaning from context, but pronounced it "tisk", and it's come into misspeak.

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