It's Littlefoot.
It's the Loch Ness Monster's dog.
'See, one day, I was feeding the Loch Ness Monster's dog some Kibbles and Bits, and all of a sudden, I see the Loch Ness Monster hovering over me. I says to him, "Hello, Loch Ness Monster. Cute dog you have here." And he says to me, "Thanks. Can I borrow........ about tree fiddy." And I says, "NO, Loch Ness Monster, you can't borrow no tree fiddy!"'
'I gave him a dolla.'
'WOMAN! You can't give no Loch Ness Monster no dolla! Then he'll know you got money, and he'll try to borrow...... about tree fiddy.'