Top Definition
When the paper wrapping around a fatty item of food (traditionally, a fish-based item such as fish and chips or a fish sandwich) turns translucent due to having absorbed a large amount of grease.
"If you're not sure about something, rub it against a piece of paper. If the paper turns clear, it's your window to weight gain."
by Zerotime January 22, 2009
6 Words related to window to weight gain

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