When you put your hands together and roll them down a friend's back unexpectedly in a quick unexpected motion, hopefully making them jump or yelp.
"I've had enough, dude! Stop Pinwheeling me!"
by JrooJrooBonz August 02, 2008

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What Nickelodeion was before 1981.
Pinwheel is what Nickelodeion was 1977-1981.
by 12thirteen October 30, 2004

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A dance popular in the 1930s and 1940s, done in a squatting position,with the hands on the floor and rotating the legs round and round,thus resembling the motion of a pinwheel. It is often performed in theatrical revues and follies.
Mike,Wade,Eric,Pat,Gary,Brock,Scott,Musa,Todd,and Tony are all good at doing the pinwheel. Each of them has performed it in the Thanksgiving Follies scene in South Pacific.
by JMC70 December 14, 2016

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