coco rock
n.— «Company chiefs were on a high when they launched chocolatey Coco Rocks earlier this year. But they were left red-faced last night after discovering the term is already a street word for dark-brown crack cocaine, made by adding chocolate pudding during its production.» —“What a total rock-up” by Charles Rae The Sun (U.K.) June 28, 2005. (source: Double-Tongued Dictionary)