I've a hunch that the word "Greetings" originated with a mud faced street kid, who, being one of the first to receive when the Martians came over, said "gree tings" in his code language, meaning "green things". Gree Tings, they come in Peas (i.e they were shot out of pea shooters)
Be that as it may, Season's Greetings:
We wish you a heavy rest mass,
we wish you a heavy rest mass,
we wish you a heavy rest mass,
And, ... And, ...
(ulp, can't think of what comes next)
Aw all right,
And a Happy New Year
(although I was for sure trying hard to come up with something along the lines of characteristic hypersurfaces of wave equations and such likes, ... Oh well.)
Hang on, hang on,
Got it!
And
Poppies in yer ears ...