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1.
Imaginary circle one steps or moves into when going off on a tangent during lively intellectual conversation.
They were having a rollicking discussion when he suddenly veered off topic. This was made all the more obvious by scooting his chair over just a tish (titch, skosh, trifle) and announcing that he was now inside the Circle of Digression.
by mcveym+mitchellc April 13, 2011
 
2.
Imaginary circle one steps into when going off on a tangent during lively intellectual conversation.
They were having a rollicking discussion when he suddenly veered off topic. He made this all the more obvious by scooting his chair over just a titch and announcing that he was stepping into The Circle of Digression.

Sometimes referred to by insiders as the COD.
by mcveym+mitchellc April 13, 2011