Top Definition
When you go for a number two and you feel like you have passed a Rubiks cube or something of a similar shape.

Originated in Manchester in the early 2000's and has been linked to the disappearance of numourous gentleman for at least twenty minutes a go.
John: Where have you been mate, you look terrible.

Dave: Mate I think I just Poo'd a cube! My ring is throbbing...
by MadManc78 February 08, 2010

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