1. An unintentional lengthening of one's car ride by taking wrong turns; Primarily due to the driver being high on weed.

2. An intentional lengthening of one's car ride so that the driver and/or passengers may smoke weed. See bake route.
Susan: "John why are you so late?! Transformers 2 started ten minutes ago!"
John: "Sorry, we took a green detour so that we might actually enjoy this movie."
by a9ent smik April 23, 2010
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