Wow! I actually googled the words hoping to find another verse, but I guess there isn't one. Good to see the variants - my dad and his - also Irish - would bounce us as children on his knee and sing:

Chip, chip, my little horse.
Chip, chip, again sir.
How many miles to London town?
Four score and ten, sir.

Chip, chip, my little horse.
Chip, chip, again sir!
Will I get there by candle light?
You can, and back again, sir!