Eat it like a horsey
When your friend gives you a little snack, but you have to eat it off their hand like a hungry raccoon who just got kicked out of the trash bin.
I had to eat a chip off his hand after I made a bet and lost.
She handed me a piece of cake and said, 'Eat it like a horsey or I'll tell everyone you're a baby.'
He made me eat a pretzel off his hand like I was a baby who just got fed by a monster.