Here is what I know of the song (there is a book out there, I am pretty sure I know the lyrics right)
*to the tune of Jingle Bells
Dashing out of bed,
into the Christmas tree
I find it green and red
a present just for me
I shake it just a bit
but theres no bang or pow
could the really be my gift
the box just said MEOW
ohh..... jingle cats, jingle cats
came on christmas day
furry little black and white paws
my jingle cat came to sta-ay
jingle cats, jingle cats
came on Christmas day
furry little black and white paws
my jingle cats came to stay-ay
**Thats all I know, my friend (who I sing this with all the time) knows all the verses, so I will have to ask her later! Enjoy!