From what I remember it was:

Whan miss Suzy was a baby a baby a baby when miss suzy was a baby shw went like this, waa waa

Whan miss suzy was a toddler a toddler a toddler when miss suzy was a toddler she went like this, waa waa, tie my shoe.

It continued untill it ended up like this:
Baby: waa waa
Toddler: tie my shoe
Child: give me back my dollie
Teenager: Oh Ah lost my bra in my boyfriends car
Adult: Hey girls look at my ring
Mother: Rock a bye baby
Grandmother: Oh my achy breaky back

Then me and my friend's added on verses that we liked

Dead: I'm flying I'm flying
Ghost: I'm invisable

At the end we say: I'm back!