1. The act of vomiting and defecating at the same time.

2. When the smell of one's own excrement causes him to vomit directly after defecating.
I was drinking Mad Dog all night, and when I took a shit, the smell sent me pinwheeling.
by DamnDirtySteve October 19, 2003
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The act of twirling your boner out the sun roof of a moving vehicle to elicit interest from the opposite sex.
guy #1 Dude, did you see that fox?

guy #2 I'll bet if we excercise some pinwheeling, we'll get her attention.

guy #3 I think you're right
by Job Pilson July 15, 2008
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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 15, 2016
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When using a Mac and your cursor become an infinitely spinning pinwheel. Often occurring when a programme crashes or when too many applications are opened/being opened at once.
While opening my Adobe software and watching videos online at the same time I was hypnotized by Mac's colourful pinwheel.

I was pinwheeling when I overloaded my Mac with processes.
by CyborgElete September 29, 2007
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The art of being prejudiced towards a pinwheel.

As in color, shape, size, way of spinning, et cetera.
"Gosh sally! You are such a pinwheelist!"

I hate that pinwheelism, you know, the pinwheels deserve a chance.
by Karizzle Plizzle November 23, 2009
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the act of rapidly spinning your penis while taking a piss.
i totally just went pinwheeling in your bathroom.
by xSpAnKx MaNiiAc January 2, 2011
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Another name for a skinny marijuana cigarette. The same as a pinner. A poor excuse for a joint but if that's all you got then you will make it work and still have a smile on your face.
guy 1: Hey mike pass me that joint before you suck it all down. guy 2: It's all I had so I rolled a pinwheeler. guy 1: It's cool man. Thanks bro.
by jimmybomm May 21, 2020
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