"Got a few pointers from the nuns"

Were they blue nuns, by chance?
Or, are you pointing to rather tasteless mental nunsploitation?

With Donini, Mateus Rosé, Baby Duck, and Blue Nun (german liebfraumilch)introduced me to "chugging" wines in the late 60's.

I understand that "Blue Nun" has been revamped for a turnaround, with new, more acceptable products and a marketing campaign that has made it trendy again. Never underestimate the staying power of the "Nun".