1 definition by oobilyboo

A segué which suggests that the topic of conversation being moved to, is related to the one being moved from, when in fact they are entirely unrelated.
Person A: Nice weather we're having today, is it not?
Person B: Yes, quite, and speaking of the weather; where's that £5 you owe me?

Here, "And speaking of the weather," is the Deus Segué Machina.
by oobilyboo October 2, 2011
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