A popular phrase from the Red Green show. It is most often said when the show's hosts are using duct tape. One example is a modification to a car that required attaching a snowplow to the front. They used several rolls of duct tape to hold the plow to the car, saying "Remember, it's only temporary, unless it works."

This phrase has been heard in many places, such as CAE (my place of employment). Frequently, when correcting a system problem, a temporary fix will be thrown together, after which you can usually hear "it's only temporary unless it works."

Similar to: if it ain't broke, don't fix it.