Yay, I love this topic.  I have lots.  Here are some of mine:
Hey, Hey, get out of my way.
I just came back from the USA,
Kaboom.  
LMAO.  What the devil were we talking about???  You would do this with 2 or more friends with your arms locked around each other - think Rockettes.  Then when you say "Kaboom" we'd all kick our right leg out.
Down, down baby
Down, down the roller coaster
Sweet, sweet baby
I'll never let you go
Shimmy, Shimmy Cocoa Pops
Shimmy, Shimmy Rah
Shimmy, Shimmy Cocoa Pops
Shimmy, Shimmy Rah
I got a boyfriend - a milkshake
He's so sweet - a milkshake
Again, WTH???  I don't remember the rest of it, so feel free to add.
My back is aching, my bra's too tight
My booty's shaking from the left to the right. 
What's the one about a bullfrog jumping from bank to bank?