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When two people attach cones to each of their ass cheeks at the base, and insert them into each other's asses tapered side out. This leaves one unused cone on each person's ass cheeks. This allows for others to chain the effect and join in on the fun as long as they have enough ass-cones.
I walked outside my house yesterday and everyone in the neighborhood was just...ass-coning!

Altogether ass-coning!
by Aborro Watabonosk March 20, 2017
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