To do knock knock poopy stomp:

Step 1: Get a paper sandwhich bag with dog poop inside
Step 2: Put it on someone's doorstep

Step 3: Light it on fire
Step 4: Knock louldy on door
Step 5: Run!

The person will answer the door, see the fire and attempt to put it out by stepping in the dog poop!
Damn! Someone knock knock poopy stomped me again! Now I have to get another new pair of shoes!
by Space Dog January 11, 2011
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