In the US, it was ears that hung low. And there was more:
Do your ears hang low?
Do they wobble to and fro?
Can you tie them in a knot?
Can you tie them in a bow?
Can you throw 'em over your back,
Like a sailor does his pack?
Do your ears hang low?
2nd verse same as first except:
Can you throw them over your shoulder,
Like a Continental soldier?