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1.
to Tangize: To diverge suddenly from a thought. Tangizing(adj.) When a person is discussing a topic and feels the need to add irrelevant stories just to have the "story" wind-up relating to the first topic!
I can't follow a thing they said. they start telling me one thing and next thing you know, they start to tangize and are going off about something else.

That chick has been tangizing for 15 minutes already and now I forgot how the discussion began!
by Jeff & Terra April 28, 2006