Here's a trick most kids know
Try it, makes the blood flow
Grab your fingers, then go..

Do the Knucklecrack (do the Knucklecrack)
Do the Knucklecrack (do the knucklecrack)
If ya don't know how to do it,
Ask the kid out back (ask the kid out back)

Pull your finger hard (pull your finger hard)
Tell you for a fact (tell you for a fact)
You will hear a funny noise like a clicky clack (like a clicky clack)
Try for number two (try for number two)
Number three is next (never be perplexed)
Anyone can learn to do it, (do the Knucklecrack)

It won't please your dear mom.
She will say, "No, no, Tom.."
Claim your finger free-dom..

Do the Knucklecrack
Do the Knucklecrack
If ya don't know how to do it
Ask the kid out back..

Pull your finger hard
Feel a little slack
Soon, you'll hear the bones a' snappin' at the joint track

Do it all day long
Then, your clothes, go pack
'Cause parents will evict you when you do the Knucklecrack