I want to add that my personal thought on the last line before the final chorus is a pun/play on words possibly a triple-play.
My first assumption is that the word should be "sleighed" rather than "slayed", and coincidentally a third meaning being "Slade" since that's the name of the band that originated the song. In the end though all three meanings can apply but the main meaning being "sleighed" since it's a Christmas song and those often incorporate sleigh into the theming, and if you fill on your head then you would coincidentally be slayed by a sleigh.
I want to add that my personal thought on the last line before the final chorus is a pun/play on words possibly a triple-play.
My first assumption is that the word should be "sleighed" rather than "slayed", and coincidentally a third meaning being "Slade" since that's the name of the band that originated the song. In the end though all three meanings can apply but the main meaning being "sleighed" since it's a Christmas song and those often incorporate sleigh into the theming, and if you fill on your head then you would coincidentally be slayed by a sleigh.