A brand of very liquid fruit flavoured yogurt sold in bottles, largely in Canada. Yop had a memorable ad campaign in the late eighties involving the popping sound that empty yop bottles could be induced to make, which, as you can imagine, led to countless very messy Yop experiments on many an elementary school playground. As for the taste, well, it tastes like normal fruit yogurt, save that the texture is a little disturbing to many people used to thick yogurt. Yop is distributed by Dairyworld Foods in British Columbia, and probably others elsewhere.